English Vocabulary · Grade 8 Live Review Preview

8th Grade Vocabulary Words

Eighth-grade readers move toward high-school-level analysis across literature, argument, research, physical and life science, algebra, economics, history, and civics. This level strengthens precise Tier II and cross-curricular vocabulary while emphasizing context, analogy, word relationships, Greek and Latin roots, multiple meanings, source judgment, and evidence-based communication.

This independently authored 500-word beta curriculum is arranged in twenty pages of twenty-five words each. Words 1–300 include five cloze questions per page; words 301–500 remain fully visible and editable as list pages while the expanded practice layer is developed. Each row includes a subject-field label and an editable word-study note about a transparent affix, compound structure, capitalization, or dictionary base form. The cited Grade 8 resources calibrate difficulty and vocabulary-study skills only; all learner-facing definitions, examples, quizzes, and descriptions are original KSSR copy.

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Complete text list

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Page 1: words 1–25

Vocabulary page 1
#	Word	Details	Meaning	Sample sentence
1	abet	verb Study Field: Grade 8 precise high-utility word Word study: Base-form focus: abet is the dictionary headword; compare its inflected or derived forms in context.	1. incitar 2. instigar	A driver who knowingly helps thieves escape may abet the crime.
2	accord	noun Study Field: Grade 8 precise high-utility word Word study: Base-form focus: accord is the dictionary headword; compare its inflected or derived forms in context.	acordo	The two councils reached an accord after weeks of negotiation.
3	allot	verb Study Field: Grade 8 precise high-utility word Word study: Base-form focus: allot is the dictionary headword; compare its inflected or derived forms in context.	1. alocar 2. alotar 3. repartir	The schedule will allot twenty minutes to each presentation.
4	amiss	adjective Study Field: Grade 8 precise high-utility word Word study: Base-form focus: amiss is the dictionary headword; compare its inflected or derived forms in context.	errado	When the alarm stayed silent during the drill, the custodian knew something was amiss.
5	apprehend	verb Study Field: Grade 8 precise high-utility word Word study: Base-form focus: apprehend is the dictionary headword; compare its inflected or derived forms in context.	1. apreender 2. deter 3. prender	Investigators used the security footage to apprehend the suspect.
6	assail	verb Study Field: Grade 8 precise high-utility word Word study: Base-form focus: assail is the dictionary headword; compare its inflected or derived forms in context.	investir	Opponents assail the proposal for ignoring the cost of repairs.
7	atrocity	noun Study Field: Grade 8 precise high-utility word Word study: Suffix focus: -ity commonly forms a noun naming a quality, state, or condition.	atrocidade	Survivor testimony documented the wartime atrocity.
8	avail	noun Study Field: Grade 8 precise high-utility word Word study: Base-form focus: avail is the dictionary headword; compare its inflected or derived forms in context.	valia	The crew pulled at the jammed door to no avail.
9	avid	adjective Study Field: Grade 8 precise high-utility word Word study: Base-form focus: avid is the dictionary headword; compare its inflected or derived forms in context.	ávido	An avid birder can recognize many species by their calls.
10	awry	adjective Study Field: Grade 8 precise high-utility word Word study: Base-form focus: awry is the dictionary headword; compare its inflected or derived forms in context.	1. distorcido 2. torto	The expedition went awry when floodwater erased the trail.
11	balmy	adjective Study Field: Grade 8 precise high-utility word Word study: Base-form focus: balmy is the dictionary headword; compare its inflected or derived forms in context.	brando	A balmy breeze made the spring evening comfortable.
12	banter	noun Study Field: Grade 8 precise high-utility word Word study: Base-form focus: banter is the dictionary headword; compare its inflected or derived forms in context.	1. caçoada 2. brincadeira 3. resenha	The teammates exchanged light banter while waiting for the match.
13	bizarre	adjective Study Field: Grade 8 precise high-utility word Word study: Base-form focus: bizarre is the dictionary headword; compare its inflected or derived forms in context.	1. bizarro 2. estranho	The bizarre sculpture combines a bicycle wheel with a glass umbrella.
14	blasé	adjective Study Field: Grade 8 precise high-utility word Word study: Base-form focus: blasé is the dictionary headword; compare its inflected or derived forms in context.	blasé	After attending dozens of premieres, the critic seemed blasé about meeting celebrities.
15	bonanza	noun Study Field: Grade 8 precise high-utility word Word study: Base-form focus: bonanza is the dictionary headword; compare its inflected or derived forms in context.	bonança	The discovery of rare minerals created a temporary bonanza for the town.
16	bountiful	adjective Study Field: Grade 8 precise high-utility word Word study: Base-form focus: bountiful is the dictionary headword; compare its inflected or derived forms in context.	abundante	Regular rain produced a bountiful apple harvest.
17	cache	noun Study Field: Grade 8 precise high-utility word Word study: Base-form focus: cache is the dictionary headword; compare its inflected or derived forms in context.	1. armazenar em cache 2. cache 3. memória cache	Hikers found an emergency cache containing blankets and water.
18	capacious	adjective Study Field: Grade 8 precise high-utility word Word study: Suffix focus: -ous commonly forms an adjective meaning full of or characterized by.	espaçoso	The capacious auditorium can seat the entire school.
19	citadel	noun Study Field: Grade 8 precise high-utility word Word study: Base-form focus: citadel is the dictionary headword; compare its inflected or derived forms in context.	cidadela	The ancient citadel overlooks the harbor from a rocky hill.
20	clad	adjective Study Field: Grade 8 precise high-utility word Word study: Base-form focus: clad is the dictionary headword; compare its inflected or derived forms in context.	cobrir	Workers clad in reflective jackets directed traffic around the sinkhole.
21	commemorate	verb Study Field: Grade 8 precise high-utility word Word study: Base-form focus: commemorate is the dictionary headword; compare its inflected or derived forms in context.	comemorar	The mural will commemorate the nurses who served during the epidemic.
22	component	noun Study Field: Grade 8 precise high-utility word Word study: Base-form focus: component is the dictionary headword; compare its inflected or derived forms in context.	componente	The battery is a crucial component of the emergency radio.
23	confiscate	verb Study Field: Grade 8 precise high-utility word Word study: Base-form focus: confiscate is the dictionary headword; compare its inflected or derived forms in context.	confiscar	Airport officers may confiscate items that violate safety rules.
24	connoisseur	noun Study Field: Grade 8 precise high-utility word Word study: Base-form focus: connoisseur is the dictionary headword; compare its inflected or derived forms in context.	1. conhecedor 2. connaisseur 3. perito	A tea connoisseur can distinguish subtle differences in aroma.
25	conservative	adjective Study Field: Grade 8 precise high-utility word Word study: Suffix focus: -ive commonly forms an adjective meaning having a quality or tendency.	conservador	Engineers used a conservative estimate for the bridge's safe load.

A Bizarre Festival

Reading practice for pages 1–3. Five relevant words are highlighted.

English reading

At a bizarre film festival, several directors reach an accord to share equipment. Their cooperation does not abet cheating; every entry remains independent. Reviewers who once seemed blasé become excited when ticket sales create a bonanza for the town library.

Portuguese translation

A reviewed translation is not available for this passage yet.

Reading comprehension

1. What agreement do the directors reach?

They reach an accord to share equipment.

2. Does sharing equipment abet cheating?

No, each entry remains independent.

3. Who benefits from the bonanza?

The town library benefits.

Cloze vocabulary quiz

1. The ___ sculpture combines a bicycle wheel with a glass umbrella.

Answer: bizarre

2. A driver who knowingly helps thieves escape may ___ the crime.

Answer: abet

3. After attending dozens of premieres, the critic seemed ___ about meeting celebrities.

Answer: blasé

4. The two councils reached an ___ after weeks of negotiation.

Answer: accord

5. The discovery of rare minerals created a temporary ___ for the town.

Answer: bonanza

Page 2: words 26–50

Vocabulary page 2
#	Word	Details	Meaning	Sample sentence
26	crusade	noun Study Field: Grade 8 precise high-utility word Word study: Base-form focus: crusade is the dictionary headword; compare its inflected or derived forms in context.	cruzada	Her crusade against food waste persuaded several restaurants to donate leftovers.
27	deceptive	adjective Study Field: Grade 8 precise high-utility word Word study: Suffix focus: -ive commonly forms an adjective meaning having a quality or tendency.	1. enganador 2. enganoso	The calm surface was deceptive because a strong current flowed underneath.
28	decipher	verb Study Field: Grade 8 precise high-utility word Word study: Base-form focus: decipher is the dictionary headword; compare its inflected or derived forms in context.	decifrar	A linguist helped decipher the faded symbols on the tablet.
29	decree	noun Study Field: Grade 8 precise high-utility word Word study: Base-form focus: decree is the dictionary headword; compare its inflected or derived forms in context.	decreto	The royal decree opened the port to foreign merchants.
30	deface	verb Study Field: Grade 8 precise high-utility word Word study: Base-form focus: deface is the dictionary headword; compare its inflected or derived forms in context.	desfigurar	Vandals tried to deface the memorial with paint.
31	defect	noun Study Field: Grade 8 precise high-utility word Word study: Base-form focus: defect is the dictionary headword; compare its inflected or derived forms in context.	defeito	A tiny defect in the seal allowed water to enter the container.
32	deplore	verb Study Field: Grade 8 precise high-utility word Word study: Base-form focus: deplore is the dictionary headword; compare its inflected or derived forms in context.	condenar	Community leaders deplore the destruction of the historic theater.
33	deploy	verb Study Field: Grade 8 precise high-utility word Word study: Base-form focus: deploy is the dictionary headword; compare its inflected or derived forms in context.	1. abrir 2. disponibilizar 3. lançar	Firefighters deploy portable pumps along the flooded street.
34	desist	verb Study Field: Grade 8 precise high-utility word Word study: Base-form focus: desist is the dictionary headword; compare its inflected or derived forms in context.	desistir	The referee ordered the players to desist from arguing.
35	deter	verb Study Field: Grade 8 precise high-utility word Word study: Base-form focus: deter is the dictionary headword; compare its inflected or derived forms in context.	impedir	Bright lighting can deter theft near the station.
36	dialect	noun Study Field: Grade 8 precise high-utility word Word study: Base-form focus: dialect is the dictionary headword; compare its inflected or derived forms in context.	1. dialeto 2. dialecto	The novel preserves the coastal dialect in its dialogue.
37	dire	adjective Study Field: Grade 8 precise high-utility word Word study: Base-form focus: dire is the dictionary headword; compare its inflected or derived forms in context.	1. horrível 2. terrível	The clinic faced a dire shortage of clean water.
38	disgruntled	adjective Study Field: Grade 8 precise high-utility word Word study: Base-form focus: disgruntled is the dictionary headword; compare its inflected or derived forms in context.	coitado	Disgruntled customers demanded refunds after the concert was canceled.
39	dispatch	verb Study Field: Grade 8 precise high-utility word Word study: Base-form focus: dispatch is the dictionary headword; compare its inflected or derived forms in context.	1. despacho 2. despachar	The control center will dispatch a repair crew before dawn.
40	disposition	noun Study Field: Grade 8 precise high-utility word Word study: Suffix focus: -ition commonly forms a noun naming an action, process, or result.	dispor	Her patient disposition makes nervous animals feel safe.
41	doctrine	noun Study Field: Grade 8 precise high-utility word Word study: Base-form focus: doctrine is the dictionary headword; compare its inflected or derived forms in context.	doutrina	The movement's doctrine emphasized nonviolent resistance.
42	dub	verb Study Field: Grade 8 precise high-utility word Word study: Base-form focus: dub is the dictionary headword; compare its inflected or derived forms in context.	1. chamar 2. apelidar 3. dobrar	Reporters dub the rescued owl “Lucky” after its recovery.
43	elite	noun Study Field: Grade 8 precise high-utility word Word study: Base-form focus: elite is the dictionary headword; compare its inflected or derived forms in context.	1. elite 2. escol	Only the elite of the sport qualify for the final race.
44	embargo	noun Study Field: Grade 8 precise high-utility word Word study: Base-form focus: embargo is the dictionary headword; compare its inflected or derived forms in context.	embargo	The embargo prevented companies from exporting weapons to the regime.
45	embark	verb Study Field: Grade 8 precise high-utility word Word study: Base-form focus: embark is the dictionary headword; compare its inflected or derived forms in context.	começar	The researchers embark on a five-year study of coastal erosion.
46	endeavor	noun Study Field: Grade 8 precise high-utility word Word study: Base-form focus: endeavor is the dictionary headword; compare its inflected or derived forms in context.	1. tentar 2. empreitada 3. tentativa	Restoring the wetland became a shared endeavor among residents and scientists.
47	enigma	noun Study Field: Grade 8 precise high-utility word Word study: Base-form focus: enigma is the dictionary headword; compare its inflected or derived forms in context.	enigma	The source of the mysterious radio signal remains an enigma.
48	epoch	noun Study Field: Grade 8 precise high-utility word Word study: Base-form focus: epoch is the dictionary headword; compare its inflected or derived forms in context.	1. época 2. era	The invention of movable type began a new epoch in communication.
49	eventful	adjective Study Field: Grade 8 precise high-utility word Word study: Base-form focus: eventful is the dictionary headword; compare its inflected or derived forms in context.	agitado	The eventful voyage included a storm, a rescue, and an unexpected discovery.
50	exceptional	adjective Study Field: Grade 8 precise high-utility word Word study: Base-form focus: exceptional is the dictionary headword; compare its inflected or derived forms in context.	1. excepcional 2. excecional	Her exceptional memory allowed her to recite the entire speech.

Page 2 vocabulary review

Review five selected words from page 2.

Cloze vocabulary quiz

1. ___ customers demanded refunds after the concert was canceled.

Answer: disgruntled

2. Her ___ against food waste persuaded several restaurants to donate leftovers.

Answer: crusade

3. The control center will ___ a repair crew before dawn.

Answer: dispatch

4. The calm surface was ___ because a strong current flowed underneath.

Answer: deceptive

5. Her patient ___ makes nervous animals feel safe.

Answer: disposition

Page 3: words 51–75

Vocabulary page 3
#	Word	Details	Meaning	Sample sentence
51	excruciating	adjective Study Field: Grade 8 precise high-utility word Word study: Base-form focus: excruciating is the dictionary headword; compare its inflected or derived forms in context.	excruciante	The runner stopped when an excruciating pain spread through his ankle.
52	fastidious	adjective Study Field: Grade 8 precise high-utility word Word study: Suffix focus: -ous commonly forms an adjective meaning full of or characterized by.	exigente	The fastidious conservator removed dust from the painting one grain at a time.
53	fend	verb Study Field: Grade 8 precise high-utility word Word study: Base-form focus: fend is the dictionary headword; compare its inflected or derived forms in context.	defender	Thick bark helps the tree fend off insects.
54	ferret	verb Study Field: Grade 8 precise high-utility word Word study: Base-form focus: ferret is the dictionary headword; compare its inflected or derived forms in context.	furão	The auditor will ferret out errors in the complicated accounts.
55	flair	noun Study Field: Grade 8 precise high-utility word Word study: Base-form focus: flair is the dictionary headword; compare its inflected or derived forms in context.	1. dom 2. talento 3. aptidão	Mina has a flair for explaining difficult equations with simple diagrams.
56	flustered	adjective Study Field: Grade 8 precise high-utility word Word study: Base-form focus: flustered is the dictionary headword; compare its inflected or derived forms in context.	abrumado	The unexpected question left the speaker flustered for a moment.
57	foreboding	noun Study Field: Grade 8 precise high-utility word Word study: Base-form focus: foreboding is the dictionary headword; compare its inflected or derived forms in context.	mau agouro	Dark clouds filled the sailors with foreboding.
58	forfeit	verb Study Field: Grade 8 precise high-utility word Word study: Base-form focus: forfeit is the dictionary headword; compare its inflected or derived forms in context.	1. perder 2. abandonar 3. desistir	A team that uses an ineligible player may forfeit the match.
59	fortify	verb Study Field: Grade 8 precise high-utility word Word study: Suffix focus: -ify commonly forms a verb meaning to make or become.	fortificar	Sandbags fortify the riverbank before the storm.
60	foster	verb Study Field: Grade 8 precise high-utility word Word study: Base-form focus: foster is the dictionary headword; compare its inflected or derived forms in context.	1. cultivar 2. cuidar 3. nutrir	The exchange program aims to foster respect between the two communities.
61	gaunt	adjective Study Field: Grade 8 precise high-utility word Word study: Base-form focus: gaunt is the dictionary headword; compare its inflected or derived forms in context.	hético	After weeks without enough food, the abandoned dog looked gaunt.
62	gingerly	adverb Study Field: Grade 8 precise high-utility word Word study: Suffix focus: -ly commonly forms an adverb describing how an action occurs.	1. cautelosamente 2. cuidadosamente	She stepped gingerly across the icy porch.
63	glut	noun Study Field: Grade 8 precise high-utility word Word study: Base-form focus: glut is the dictionary headword; compare its inflected or derived forms in context.	excesso	A glut of tomatoes caused prices at the market to fall.
64	grapple	verb Study Field: Grade 8 precise high-utility word Word study: Base-form focus: grapple is the dictionary headword; compare its inflected or derived forms in context.	1. abordar 2. lidar 3. lutar	City planners grapple with how to add housing without removing parks.
65	grope	verb Study Field: Grade 8 precise high-utility word Word study: Base-form focus: grope is the dictionary headword; compare its inflected or derived forms in context.	apalpar	In the dark tent, Leo had to grope for the flashlight.
66	gullible	adjective Study Field: Grade 8 precise high-utility word Word study: Suffix focus: -ible means capable of, suitable for, or able to be affected.	crédulo	A gullible reader may trust the fake advertisement.
67	haggard	adjective Study Field: Grade 8 precise high-utility word Word study: Base-form focus: haggard is the dictionary headword; compare its inflected or derived forms in context.	abatido	The haggard rescue workers finally rested after the overnight search.
68	haven	noun Study Field: Grade 8 precise high-utility word Word study: Base-form focus: haven is the dictionary headword; compare its inflected or derived forms in context.	santuário	The sheltered bay became a haven for boats during the storm.
69	heritage	noun Study Field: Grade 8 precise high-utility word Word study: Base-form focus: heritage is the dictionary headword; compare its inflected or derived forms in context.	1. herança 2. património	The festival celebrates the region's musical heritage.
70	hindrance	noun Study Field: Grade 8 precise high-utility word Word study: Suffix focus: -ance commonly forms a noun naming an action, quality, or state.	1. barreira 2. empecilho 3. entrave	A broken compass became a serious hindrance in the fog.
71	humane	adjective Study Field: Grade 8 precise high-utility word Word study: Base-form focus: humane is the dictionary headword; compare its inflected or derived forms in context.	humano	The shelter follows humane practices when caring for injured wildlife.
72	incense	verb Study Field: Grade 8 precise high-utility word Word study: Base-form focus: incense is the dictionary headword; compare its inflected or derived forms in context.	incenso	The decision to close the clinic will incense many residents.
73	infinite	adjective Study Field: Grade 8 precise high-utility word Word study: Base-form focus: infinite is the dictionary headword; compare its inflected or derived forms in context.	infinito	A mathematical line extends an infinite distance in both directions.
74	instill	verb Study Field: Grade 8 precise high-utility word Word study: Base-form focus: instill is the dictionary headword; compare its inflected or derived forms in context.	1. inculcar 2. instilar	Daily practice can instill confidence in a new musician.
75	institute	verb Study Field: Grade 8 precise high-utility word Word study: Base-form focus: institute is the dictionary headword; compare its inflected or derived forms in context.	instituto	The school will institute a recycling policy next term.

Page 3 vocabulary review

Review five selected words from page 3.

Cloze vocabulary quiz

1. The runner stopped when an ___ pain spread through his ankle.

Answer: excruciating

2. City planners ___ with how to add housing without removing parks.

Answer: grapple

3. The ___ conservator removed dust from the painting one grain at a time.

Answer: fastidious

4. In the dark tent, Leo had to ___ for the flashlight.

Answer: grope

5. Thick bark helps the tree ___ off insects.

Answer: fend

Page 4: words 76–100

Vocabulary page 4
#	Word	Details	Meaning	Sample sentence
76	intervene	verb Study Field: Grade 8 precise high-utility word Word study: Base-form focus: intervene is the dictionary headword; compare its inflected or derived forms in context.	1. intervir 2. interceder	A mediator may intervene before the disagreement becomes violent.
77	languish	verb Study Field: Grade 8 precise high-utility word Word study: Base-form focus: languish is the dictionary headword; compare its inflected or derived forms in context.	definhar	The unfinished bill may languish in committee for months.
78	legendary	adjective Study Field: Grade 8 precise high-utility word Word study: Base-form focus: legendary is the dictionary headword; compare its inflected or derived forms in context.	1. lendário 2. legendário 3. mítico	The goalkeeper's legendary save is still discussed decades later.
79	luminous	adjective Study Field: Grade 8 precise high-utility word Word study: Suffix focus: -ous commonly forms an adjective meaning full of or characterized by.	luminoso	Luminous paint marks the emergency exit in darkness.
80	mien	noun Study Field: Grade 8 precise high-utility word Word study: Base-form focus: mien is the dictionary headword; compare its inflected or derived forms in context.	cara	Despite the tense hearing, the witness maintained a calm mien.
81	millennium	noun Study Field: Grade 8 precise high-utility word Word study: Base-form focus: millennium is the dictionary headword; compare its inflected or derived forms in context.	1. milénio 2. milênio	The temple has stood for nearly a millennium.
82	minimize	verb Study Field: Grade 8 precise high-utility word Word study: Suffix focus: -ize commonly forms a verb meaning to make, become, or apply.	minimizar	Protective covers minimize damage from dust and sunlight.
83	muster	verb Study Field: Grade 8 precise high-utility word Word study: Base-form focus: muster is the dictionary headword; compare its inflected or derived forms in context.	reunir	The exhausted climber had to muster enough strength for the final ascent.
84	onslaught	noun Study Field: Grade 8 precise high-utility word Word study: Base-form focus: onslaught is the dictionary headword; compare its inflected or derived forms in context.	1. assalto 2. investida	The seawall absorbed the first onslaught of storm waves.
85	ornate	adjective Study Field: Grade 8 precise high-utility word Word study: Base-form focus: ornate is the dictionary headword; compare its inflected or derived forms in context.	ornamentado	An ornate border of vines surrounds the manuscript.
86	ovation	noun Study Field: Grade 8 precise high-utility word Word study: Base-form focus: ovation is the dictionary headword; compare its inflected or derived forms in context.	ovação	The orchestra received a standing ovation after the final movement.
87	overt	adjective Study Field: Grade 8 precise high-utility word Word study: Base-form focus: overt is the dictionary headword; compare its inflected or derived forms in context.	abertamente	The policy faced overt resistance from several council members.
88	panorama	noun Study Field: Grade 8 precise high-utility word Word study: Base-form focus: panorama is the dictionary headword; compare its inflected or derived forms in context.	panorama	From the summit, hikers saw a panorama of lakes and forests.
89	phenomenon	noun Study Field: Grade 8 precise high-utility word Word study: Base-form focus: phenomenon is the dictionary headword; compare its inflected or derived forms in context.	1. fenômeno 2. fenómeno	Bioluminescence is a natural phenomenon in which organisms produce light.
90	pioneer	noun Study Field: Grade 8 precise high-utility word Word study: Base-form focus: pioneer is the dictionary headword; compare its inflected or derived forms in context.	pioneiro	The engineer became a pioneer in low-cost water purification.
91	pivotal	adjective Study Field: Grade 8 precise high-utility word Word study: Base-form focus: pivotal is the dictionary headword; compare its inflected or derived forms in context.	1. crucial 2. pivotal	The witness's photograph played a pivotal role in the investigation.
92	plunder	verb Study Field: Grade 8 precise high-utility word Word study: Base-form focus: plunder is the dictionary headword; compare its inflected or derived forms in context.	1. saquear 2. pilhar 3. bundar	Invading soldiers tried to plunder the town's stores.
93	porous	adjective Study Field: Grade 8 precise high-utility word Word study: Base-form focus: porous is the dictionary headword; compare its inflected or derived forms in context.	poroso	Porous rock absorbs water more readily than solid granite.
94	preposterous	adjective Study Field: Grade 8 precise high-utility word Word study: Suffix focus: -ous commonly forms an adjective meaning full of or characterized by.	1. absurdo 2. insensato	The rumor that the moon had disappeared was preposterous.
95	prodigy	noun Study Field: Grade 8 precise high-utility word Word study: Base-form focus: prodigy is the dictionary headword; compare its inflected or derived forms in context.	presságio	The piano prodigy composed her first concerto at age twelve.
96	proficient	adjective Study Field: Grade 8 precise high-utility word Word study: Base-form focus: proficient is the dictionary headword; compare its inflected or derived forms in context.	1. proficiente 2. competente 3. perito	A proficient coder can identify the source of the error quickly.
97	pseudonym	noun Study Field: Grade 8 precise high-utility word Word study: Base-form focus: pseudonym is the dictionary headword; compare its inflected or derived forms in context.	1. pseudónimo 2. pseudônimo	The novelist published the mystery under a pseudonym.
98	pungent	adjective Study Field: Grade 8 precise high-utility word Word study: Base-form focus: pungent is the dictionary headword; compare its inflected or derived forms in context.	acre	The pungent smoke from the burning rubber made our eyes water.
99	rankle	verb Study Field: Grade 8 precise high-utility word Word study: Base-form focus: rankle is the dictionary headword; compare its inflected or derived forms in context.	desanimar	The unfair accusation continued to rankle him years later.
100	rebuke	verb Study Field: Grade 8 precise high-utility word Word study: Base-form focus: rebuke is the dictionary headword; compare its inflected or derived forms in context.	1. censurar 2. incriminar 3. repreender	The judge will rebuke any lawyer who ignores the court's rules.

The Legendary Wetland

Reading practice for pages 4–6. Five relevant words are highlighted.

English reading

A pioneer ecologist records a rare migration phenomenon in a wetland that later begins to languish. Her legendary notebooks show where birds once nested. Conservationists intervene by restoring water flow and native plants.

Portuguese translation

A reviewed translation is not available for this passage yet.

Reading comprehension

1. What did the pioneer record?

She recorded a migration phenomenon.

2. What happens to the wetland?

The wetland begins to languish.

3. How do conservationists intervene?

They restore water flow and native plants.

Cloze vocabulary quiz

1. A mediator may ___ before the disagreement becomes violent.

Answer: intervene

2. Bioluminescence is a natural ___ in which organisms produce light.

Answer: phenomenon

3. The unfinished bill may ___ in committee for months.

Answer: languish

4. The engineer became a ___ in low-cost water purification.

Answer: pioneer

5. The goalkeeper's ___ save is still discussed decades later.

Answer: legendary

Page 5: words 101–125

Vocabulary page 5
#	Word	Details	Meaning	Sample sentence
101	argumentation	noun Study Field: Grade 8 language and literature word Word study: Suffix focus: -ation commonly forms a noun naming an action, process, or result.	argumentação	Effective argumentation connects each reason to reliable evidence.
102	substantiation	noun Study Field: Grade 8 language and literature word Word study: Suffix focus: -ation commonly forms a noun naming an action, process, or result.	fundamentação	The editor requested substantiation for the article's surprising statistic.
103	interpretive	adjective Study Field: Grade 8 language and literature word Word study: Suffix focus: -ive commonly forms an adjective meaning having a quality or tendency.	interpretativo	Her interpretive essay examines how the storm symbolizes fear.
104	analytical	adjective Study Field: Grade 8 language and literature word Word study: Base-form focus: analytical is the dictionary headword; compare its inflected or derived forms in context.	analítico	An analytical reader compares the author's claim with the supporting data.
105	intertextuality	noun Study Field: Grade 8 language and literature word Word study: Suffix focus: -ity commonly forms a noun naming a quality, state, or condition.	intertextualidade	The novel's allusion to an ancient myth creates intertextuality.
106	apostrophe	noun Study Field: Grade 8 language and literature word Word study: Base-form focus: apostrophe is the dictionary headword; compare its inflected or derived forms in context.	1. apóstrofo 2. apóstrofe	The poet uses apostrophe when she speaks directly to the moon.
107	metonymy	noun Study Field: Grade 8 language and literature word Word study: Base-form focus: metonymy is the dictionary headword; compare its inflected or derived forms in context.	metonímia	In the phrase “the crown announced,” crown is metonymy for the monarch.
108	synecdoche	noun Study Field: Grade 8 language and literature word Word study: Base-form focus: synecdoche is the dictionary headword; compare its inflected or derived forms in context.	sinédoque	Calling workers “hired hands” uses synecdoche because hands represent people.
109	foreshadowing	noun Study Field: Grade 8 language and literature word Word study: Base-form focus: foreshadowing is the dictionary headword; compare its inflected or derived forms in context.	1. augúrio 2. presságio	The cracked compass provides foreshadowing of the travelers' coming trouble.
110	foil	noun Study Field: Grade 8 language and literature word Word study: Base-form focus: foil is the dictionary headword; compare its inflected or derived forms in context.	folha	The cautious brother serves as a foil to the reckless hero.
111	revision	noun Study Field: Grade 8 language and literature word Word study: Suffix focus: -sion commonly forms a noun naming an action, process, or result.	revisão	During revision, Lila moved her strongest evidence closer to the claim.
112	editing	noun Study Field: Grade 8 language and literature word Word study: Base-form focus: editing is the dictionary headword; compare its inflected or derived forms in context.	edição	Careful editing removed three sentence fragments from the report.
113	colloquialism	noun Study Field: Grade 8 language and literature word Word study: Suffix focus: -ism often names a belief, system, movement, or practice.	coloquialismo	The dialogue includes the colloquialism “no big deal” to sound natural.
114	morphology	noun Study Field: Grade 8 language and literature word Word study: Root and suffix focus: -logy means the study of a subject.	morfologia	Morphology helps readers connect predict, prediction, and predictable.
115	semantics	noun Study Field: Grade 8 language and literature word Word study: Base-form focus: semantics is the dictionary headword; compare its inflected or derived forms in context.	semântica	A lesson in semantics showed how context changes the meaning of light.
116	phonology	noun Study Field: Grade 8 language and literature word Word study: Root and suffix focus: -logy means the study of a subject.	fonologia	Phonology explains why certain sound combinations are common in English.
117	lexicography	noun Study Field: Grade 8 language and literature word Word study: Root and suffix focus: -graphy relates to writing, recording, or describing.	lexicografia	Modern lexicography uses large language collections to track word usage.
118	homophone	noun Study Field: Grade 8 language and literature word Word study: Base-form focus: homophone is the dictionary headword; compare its inflected or derived forms in context.	homófono	Flour is a homophone of flower.
119	homograph	noun Study Field: Grade 8 language and literature word Word study: Base-form focus: homograph is the dictionary headword; compare its inflected or derived forms in context.	homógrafo	The word bow is a homograph because it can name a ribbon or an act of bending.
120	inflection	noun Study Field: Grade 8 language and literature word Word study: Suffix focus: -tion commonly forms a noun naming an action, process, or result.	flexão	Adding -ed is an inflection that marks past tense in walked.
121	derivation	noun Study Field: Grade 8 language and literature word Word study: Suffix focus: -ation commonly forms a noun naming an action, process, or result.	derivação	The derivation of happiness adds a suffix to happy.
122	repetition	noun Study Field: Grade 8 language and literature word Word study: Suffix focus: -ition commonly forms a noun naming an action, process, or result.	repetição	The speech uses repetition to make its central promise memorable.
123	inversion	noun Study Field: Grade 8 language and literature word Word study: Suffix focus: -sion commonly forms a noun naming an action, process, or result.	inversão	The line “Bright was the moon” uses inversion.
124	rhetorical-question	noun Study Field: Grade 8 language and literature word Word study: Term structure: rhetorical + question. Study the complete expression as one field-specific unit.	pergunta retórica	“Who would choose polluted water?” is a rhetorical-question that challenges the audience.
125	call-to-action	noun Study Field: Grade 8 language and literature word Word study: Term structure: call + to + action. Study the complete expression as one field-specific unit.	apelo à ação	The final paragraph includes a call-to-action asking readers to conserve water.

Page 5 vocabulary review

Review five selected words from page 5.

Cloze vocabulary quiz

1. ___ helps readers connect predict, prediction, and predictable.

Answer: morphology

2. The editor requested ___ for the article's surprising statistic.

Answer: substantiation

3. A lesson in ___ showed how context changes the meaning of light.

Answer: semantics

4. Her ___ essay examines how the storm symbolizes fear.

Answer: interpretive

5. ___ explains why certain sound combinations are common in English.

Answer: phonology

Page 6: words 126–150

Vocabulary page 6
#	Word	Details	Meaning	Sample sentence
126	audience	noun Study Field: Grade 8 language and literature word Word study: Suffix focus: -ence commonly forms a noun naming an action, quality, or state.	1. público 2. plateia 3. audiência	The writer defines technical terms because the audience includes beginners.
127	purpose	noun Study Field: Grade 8 language and literature word Word study: Base-form focus: purpose is the dictionary headword; compare its inflected or derived forms in context.	propósito	The article's purpose is to explain how vaccines train the immune system.
128	format	noun Study Field: Grade 8 language and literature word Word study: Base-form focus: format is the dictionary headword; compare its inflected or derived forms in context.	formato	A timeline is an effective format for showing a sequence of events.
129	structure	noun Study Field: Grade 8 language and literature word Word study: Base-form focus: structure is the dictionary headword; compare its inflected or derived forms in context.	estrutura	The essay's compare-and-contrast structure makes the differences easy to follow.
130	organization	noun Study Field: Grade 8 language and literature word Word study: Suffix focus: -ization forms a noun for a process of making or becoming.	organização	Clear organization guides readers from the problem to the proposed solution.
131	classification	noun Study Field: Grade 8 language and literature word Word study: Suffix focus: -ation commonly forms a noun naming an action, process, or result.	classificação	The classification of rocks depends on how they formed.
132	counterargument	noun Study Field: Grade 8 language and literature word Word study: Suffix focus: -ment commonly forms a noun for an action, process, state, or result.	contra-argumento	The essay answers the counterargument that the project costs too much.
133	warrant	noun Study Field: Grade 8 language and literature word Word study: Base-form focus: warrant is the dictionary headword; compare its inflected or derived forms in context.	garantir	The writer's warrant connects lower emissions with improved public health.
134	relevance	noun Study Field: Grade 8 language and literature word Word study: Suffix focus: -ance commonly forms a noun naming an action, quality, or state.	relevância	The judge questioned the relevance of testimony about an unrelated event.
135	publication	noun Study Field: Grade 8 language and literature word Word study: Suffix focus: -ation commonly forms a noun naming an action, process, or result.	publicação	The scientific publication requires every study to describe its methods.
136	manuscript	noun Study Field: Grade 8 language and literature word Word study: Base-form focus: manuscript is the dictionary headword; compare its inflected or derived forms in context.	manuscrito	The author sent the completed manuscript to her editor.
137	editorial	noun Study Field: Grade 8 language and literature word Word study: Base-form focus: editorial is the dictionary headword; compare its inflected or derived forms in context.	editorial	The newspaper's editorial argues for safer bicycle lanes.
138	anthology	noun Study Field: Grade 8 language and literature word Word study: Root and suffix focus: -logy means the study of a subject.	antologia	Our anthology includes folktales from twelve regions.
139	précis	noun Study Field: Grade 8 language and literature word Word study: Base-form focus: précis is the dictionary headword; compare its inflected or derived forms in context.	introdução	His précis reduces the lengthy report to one accurate paragraph.
140	synopsis	noun Study Field: Grade 8 language and literature word Word study: Base-form focus: synopsis is the dictionary headword; compare its inflected or derived forms in context.	1. resumo 2. sinopse	The program provides a synopsis of the play before the performance.
141	bildungsroman	noun Study Field: Grade 8 language and literature word Word study: Base-form focus: bildungsroman is the dictionary headword; compare its inflected or derived forms in context.	romance de formação	The bildungsroman traces how its young narrator develops courage and judgment.
142	epistolary	adjective Study Field: Grade 8 language and literature word Word study: Base-form focus: epistolary is the dictionary headword; compare its inflected or derived forms in context.	epistolar	The epistolary novel reveals the mystery through a series of emails.
143	historical-fiction	noun Study Field: Grade 8 language and literature word Word study: Term structure: historical + fiction. Study the complete expression as one field-specific unit.	ficção histórica	The historical-fiction novel places its heroine in a wartime hospital.
144	speculative-fiction	noun Study Field: Grade 8 language and literature word Word study: Term structure: speculative + fiction. Study the complete expression as one field-specific unit.	ficção especulativa	The speculative-fiction story asks what might happen if memories could be traded.
145	magical-realism	noun Study Field: Grade 8 language and literature word Word study: Term structure: magical + realism. Study the complete expression as one field-specific unit.	realismo mágico	In the magical-realism tale, the family accepts a floating house without surprise.
146	stream-of-consciousness	noun Study Field: Grade 8 language and literature word Word study: Term structure: stream + of + consciousness. Study the complete expression as one field-specific unit.	fluxo de consciência	The stream-of-consciousness passage shifts rapidly among memories, sounds, and worries.
147	interior-monologue	noun Study Field: Grade 8 language and literature word Word study: Term structure: interior + monologue. Study the complete expression as one field-specific unit.	monólogo interior	The interior-monologue reveals doubts that the character never speaks aloud.
148	free-verse	noun Study Field: Grade 8 language and literature word Word study: Term structure: free + verse. Study the complete expression as one field-specific unit.	verso livre	The free-verse poem varies its line lengths to imitate ocean waves.
149	blank-verse	noun Study Field: Grade 8 language and literature word Word study: Term structure: blank + verse. Study the complete expression as one field-specific unit.	verso em branco	The dramatist uses blank-verse for the ruler's serious speech.
150	sonnet	noun Study Field: Grade 8 language and literature word Word study: Base-form focus: sonnet is the dictionary headword; compare its inflected or derived forms in context.	soneto	The sonnet turns from loss to hope in its final lines.

Page 6 vocabulary review

Review five selected words from page 6.

Cloze vocabulary quiz

1. His ___ reduces the lengthy report to one accurate paragraph.

Answer: précis

2. The article's ___ is to explain how vaccines train the immune system.

Answer: purpose

3. The program provides a ___ of the play before the performance.

Answer: synopsis

4. A timeline is an effective ___ for showing a sequence of events.

Answer: format

5. The ___ traces how its young narrator develops courage and judgment.

Answer: bildungsroman

Page 7: words 151–175

Vocabulary page 7
#	Word	Details	Meaning	Sample sentence
151	ode	noun Study Field: Grade 8 language and literature word Word study: Base-form focus: ode is the dictionary headword; compare its inflected or derived forms in context.	ode	The poet wrote an ode celebrating the endurance of an old oak tree.
152	elegy	noun Study Field: Grade 8 language and literature word Word study: Base-form focus: elegy is the dictionary headword; compare its inflected or derived forms in context.	elegia	The elegy remembers the fisher and the coast he loved.
153	ballad	noun Study Field: Grade 8 language and literature word Word study: Base-form focus: ballad is the dictionary headword; compare its inflected or derived forms in context.	balada	The traditional ballad recounts a sailor's dangerous voyage.
154	haiku	noun Study Field: Grade 8 language and literature word Word study: Base-form focus: haiku is the dictionary headword; compare its inflected or derived forms in context.	1. haiku 2. haicai	Her haiku describes one raindrop trembling on a leaf.
155	limerick	noun Study Field: Grade 8 language and literature word Word study: Base-form focus: limerick is the dictionary headword; compare its inflected or derived forms in context.	limerique	The limerick ends with a playful rhyme about a confused chef.
156	lyric	noun Study Field: Grade 8 language and literature word Word study: Base-form focus: lyric is the dictionary headword; compare its inflected or derived forms in context.	lírico	The lyric explores the speaker's longing for home.
157	narrative-poem	noun Study Field: Grade 8 language and literature word Word study: Term structure: narrative + poem. Study the complete expression as one field-specific unit.	poema-narrativo	The narrative-poem follows a messenger across a frozen mountain.
158	dramatic-monologue	noun Study Field: Grade 8 language and literature word Word study: Term structure: dramatic + monologue. Study the complete expression as one field-specific unit.	monólogo dramático	The dramatic-monologue exposes the mayor's pride through his own words.
159	persona	noun Study Field: Grade 8 language and literature word Word study: Base-form focus: persona is the dictionary headword; compare its inflected or derived forms in context.	personagem	The poet creates a curious child's persona to describe the museum.
160	enjambment	noun Study Field: Grade 8 language and literature word Word study: Suffix focus: -ment commonly forms a noun for an action, process, state, or result.	1. cavalgamento 2. encavalgamento 3. enjambement	The poet uses enjambment to pull the reader quickly into the next line.
161	caesura	noun Study Field: Grade 8 language and literature word Word study: Base-form focus: caesura is the dictionary headword; compare its inflected or derived forms in context.	cesura	A dash creates a caesura that interrupts the speaker's confident rhythm.
162	scansion	noun Study Field: Grade 8 language and literature word Word study: Suffix focus: -sion commonly forms a noun naming an action, process, or result.	escansão	Through scansion, the students identified the line's repeating beat.
163	iamb	noun Study Field: Grade 8 language and literature word Word study: Base-form focus: iamb is the dictionary headword; compare its inflected or derived forms in context.	iambo	The word awake can illustrate an iamb.
164	trochee	noun Study Field: Grade 8 language and literature word Word study: Base-form focus: trochee is the dictionary headword; compare its inflected or derived forms in context.	1. troqueu 2. coreu	The word garden can illustrate a trochee.
165	anapest	noun Study Field: Grade 8 language and literature word Word study: Base-form focus: anapest is the dictionary headword; compare its inflected or derived forms in context.	anapesto	The phrase in the dark can form an anapest when read with the final word stressed.
166	dactyl	noun Study Field: Grade 8 language and literature word Word study: Base-form focus: dactyl is the dictionary headword; compare its inflected or derived forms in context.	dátilo	The word merrily begins with the pattern of a dactyl.
167	pentameter	noun Study Field: Grade 8 language and literature word Word study: Base-form focus: pentameter is the dictionary headword; compare its inflected or derived forms in context.	pentâmetro	Many of the play's speeches are written in iambic pentameter.
168	rhyme-scheme	noun Study Field: Grade 8 language and literature word Word study: Term structure: rhyme + scheme. Study the complete expression as one field-specific unit.	esquema de rima	The stanza's rhyme-scheme is ABAB.
169	cacophony	noun Study Field: Grade 8 language and literature word Word study: Base-form focus: cacophony is the dictionary headword; compare its inflected or derived forms in context.	cacofonia	Clashing consonants create a cacophony during the battle scene.
170	euphony	noun Study Field: Grade 8 language and literature word Word study: Base-form focus: euphony is the dictionary headword; compare its inflected or derived forms in context.	eufonia	Long vowels and gentle consonants give the lullaby its euphony.
171	plotline	noun Study Field: Grade 8 language and literature word Word study: Base-form focus: plotline is the dictionary headword; compare its inflected or derived forms in context.	enredo	The missing map begins the adventure plotline.
172	internal-conflict	noun Study Field: Grade 8 language and literature word Word study: Term structure: internal + conflict. Study the complete expression as one field-specific unit.	conflito interno	Her internal-conflict grows as she must choose between loyalty and honesty.
173	external-conflict	noun Study Field: Grade 8 language and literature word Word study: Term structure: external + conflict. Study the complete expression as one field-specific unit.	conflito externo	The climber's external-conflict is the approaching blizzard.
174	rising-action	noun Study Field: Grade 8 language and literature word Word study: Term structure: rising + action. Study the complete expression as one field-specific unit.	ação ascendente	During the rising-action, each clue brings the detective closer to danger.
175	falling-action	noun Study Field: Grade 8 language and literature word Word study: Term structure: falling + action. Study the complete expression as one field-specific unit.	ação de queda	The falling-action explains how the village rebuilds after the flood.

Rhythm in a Ballad

Reading practice for pages 7–9. Five relevant words are highlighted.

English reading

The poetry club compares a narrative ballad with a brief haiku and a mournful elegy. Students clap an anapest, which rises toward its stressed syllable, then a dactyl, which begins with one. Hearing both patterns clarifies how meter shapes mood.

Portuguese translation

A reviewed translation is not available for this passage yet.

Reading comprehension

1. Which poem tells a narrative?

The ballad tells a narrative.

2. Which poem is mournful?

The elegy is mournful.

3. Why do students clap the meters?

Clapping helps them hear the rhythmic patterns.

Cloze vocabulary quiz

1. The ___ remembers the fisher and the coast he loved.

Answer: elegy

2. The phrase in the dark can form an ___ when read with the final word stressed.

Answer: anapest

3. The traditional ___ recounts a sailor's dangerous voyage.

Answer: ballad

4. The word merrily begins with the pattern of a ___.

Answer: dactyl

5. Her ___ describes one raindrop trembling on a leaf.

Answer: haiku

Page 8: words 176–200

Vocabulary page 8
#	Word	Details	Meaning	Sample sentence
176	inciting-incident	noun Study Field: Grade 8 language and literature word Word study: Term structure: inciting + incident. Study the complete expression as one field-specific unit.	incidente incitante	The theft of the compass is the inciting-incident that starts the search.
177	antihero	noun Study Field: Grade 8 language and literature word Word study: Base-form focus: antihero is the dictionary headword; compare its inflected or derived forms in context.	anti-herói	The reluctant smuggler is an antihero who sometimes acts selfishly.
178	round-character	noun Study Field: Grade 8 language and literature word Word study: Term structure: round + character. Study the complete expression as one field-specific unit.	personagem redondo	The captain is a round-character whose courage exists beside pride and fear.
179	flat-character	noun Study Field: Grade 8 language and literature word Word study: Term structure: flat + character. Study the complete expression as one field-specific unit.	personagem plano	The boastful guard remains a flat-character with little inner development.
180	dynamic-character	noun Study Field: Grade 8 language and literature word Word study: Term structure: dynamic + character. Study the complete expression as one field-specific unit.	caráter dinâmico	The selfish prince becomes a dynamic-character when he learns to serve others.
181	static-character	noun Study Field: Grade 8 language and literature word Word study: Term structure: static + character. Study the complete expression as one field-specific unit.	caractere estático	The loyal gardener is a static-character whose values stay steady.
182	tragic-hero	noun Study Field: Grade 8 language and literature word Word study: Term structure: tragic + hero. Study the complete expression as one field-specific unit.	herói trágico	The general becomes a tragic-hero when ambition destroys his judgment.
183	comic-relief	noun Study Field: Grade 8 language and literature word Word study: Term structure: comic + relief. Study the complete expression as one field-specific unit.	alívio cômico	The nervous cook provides comic-relief before the final battle.
184	allegorical	adjective Study Field: Grade 8 language and literature word Word study: Base-form focus: allegorical is the dictionary headword; compare its inflected or derived forms in context.	alegórico	The allegorical journey represents a society's struggle for justice.
185	narrative-arc	noun Study Field: Grade 8 language and literature word Word study: Term structure: narrative + arc. Study the complete expression as one field-specific unit.	arco narrativo	The narrative-arc moves from isolation to friendship.
186	frame-story	noun Study Field: Grade 8 language and literature word Word study: Term structure: frame + story. Study the complete expression as one field-specific unit.	história-quadro	In the frame-story, travelers exchange tales during a storm.
187	unreliable-narrator	noun Study Field: Grade 8 language and literature word Word study: Term structure: unreliable + narrator. Study the complete expression as one field-specific unit.	narrador não confiável	Contradictory details reveal that the speaker is an unreliable-narrator.
188	dramatic-irony	noun Study Field: Grade 8 language and literature word Word study: Term structure: dramatic + irony. Study the complete expression as one field-specific unit.	ironia dramática	Dramatic-irony builds tension because viewers see the hidden key before the hero does.
189	situational-irony	noun Study Field: Grade 8 language and literature word Word study: Term structure: situational + irony. Study the complete expression as one field-specific unit.	ironia situacional	The fire station flooding during a drought creates situational-irony.
190	verbal-irony	noun Study Field: Grade 8 language and literature word Word study: Term structure: verbal + irony. Study the complete expression as one field-specific unit.	ironia verbal	Saying “perfect timing” after missing the bus is verbal-irony.
191	stock-character	noun Study Field: Grade 8 language and literature word Word study: Term structure: stock + character. Study the complete expression as one field-specific unit.	personagem de estoque	The boastful rival begins as a stock-character but later gains complexity.
192	quest-narrative	noun Study Field: Grade 8 language and literature word Word study: Term structure: quest + narrative. Study the complete expression as one field-specific unit.	narrativa de busca	The quest-narrative sends three friends in search of a healing spring.
193	coming-of-age	adjective Study Field: Grade 8 language and literature word Word study: Term structure: coming + of + age. Study the complete expression as one field-specific unit.	amadurecimento	The coming-of-age novel follows a teenager learning to accept responsibility.
194	epigraph	noun Study Field: Grade 8 language and literature word Word study: Base-form focus: epigraph is the dictionary headword; compare its inflected or derived forms in context.	epígrafe	The chapter's epigraph hints that freedom will be its central concern.
195	epilogue	noun Study Field: Grade 8 language and literature word Word study: Base-form focus: epilogue is the dictionary headword; compare its inflected or derived forms in context.	epílogo	The epilogue shows the characters ten years after the voyage.
196	prologue	noun Study Field: Grade 8 language and literature word Word study: Base-form focus: prologue is the dictionary headword; compare its inflected or derived forms in context.	prólogo	The prologue recounts the legend that motivates the hero.
197	stage-direction	noun Study Field: Grade 8 language and literature word Word study: Term structure: stage + direction. Study the complete expression as one field-specific unit.	direção de palco	The stage-direction tells the actor to whisper from behind the door.
198	screenplay	noun Study Field: Grade 8 language and literature word Word study: Base-form focus: screenplay is the dictionary headword; compare its inflected or derived forms in context.	1. roteiro 2. argumento	The screenplay indicates each scene's setting and camera-visible action.
199	tableau	noun Study Field: Grade 8 language and literature word Word study: Base-form focus: tableau is the dictionary headword; compare its inflected or derived forms in context.	retábulo	The actors formed a tableau of the signing ceremony.
200	archetypal	adjective Study Field: Grade 8 language and literature word Word study: Base-form focus: archetypal is the dictionary headword; compare its inflected or derived forms in context.	arquetípico	The mentor's guidance is an archetypal feature of many hero stories.

Page 8 vocabulary review

Review five selected words from page 8.

Cloze vocabulary quiz

1. The reluctant smuggler is an ___ who sometimes acts selfishly.

Answer: antihero

2. Saying “perfect timing” after missing the bus is ___.

Answer: verbal-irony

3. The captain is a ___ whose courage exists beside pride and fear.

Answer: round-character

4. The boastful rival begins as a ___ but later gains complexity.

Answer: stock-character

5. The boastful guard remains a ___ with little inner development.

Answer: flat-character

Page 9: words 201–225

Vocabulary page 9
#	Word	Details	Meaning	Sample sentence
201	kinetic-energy	noun Study Field: Grade 8 science and technology word Word study: Term structure: kinetic + energy. Study the complete expression as one field-specific unit.	energia cinética	The rolling ball gains kinetic-energy as it speeds down the ramp.
202	protein-synthesis	noun Study Field: Grade 8 science and technology word Word study: Term structure: protein + synthesis. Study the complete expression as one field-specific unit.	síntese de proteínas	During protein-synthesis, ribosomes join amino acids in a specified order.
203	thermal-energy	noun Study Field: Grade 8 science and technology word Word study: Term structure: thermal + energy. Study the complete expression as one field-specific unit.	energia térmica	Heating the water increases its thermal-energy.
204	mechanical-energy	noun Study Field: Grade 8 science and technology word Word study: Term structure: mechanical + energy. Study the complete expression as one field-specific unit.	energia mecânica	At the top of its swing, the pendulum's mechanical-energy is mostly stored.
205	chemical-energy	noun Study Field: Grade 8 science and technology word Word study: Term structure: chemical + energy. Study the complete expression as one field-specific unit.	energia química	A battery converts chemical-energy into electrical energy.
206	electrical-energy	noun Study Field: Grade 8 science and technology word Word study: Term structure: electrical + energy. Study the complete expression as one field-specific unit.	energia elétrica	The solar panels supply electrical-energy to the building.
207	electromagnetic	adjective Study Field: Grade 8 science and technology word Word study: Base-form focus: electromagnetic is the dictionary headword; compare its inflected or derived forms in context.	eletromagnético	Visible light is one type of electromagnetic radiation.
208	diffraction	noun Study Field: Grade 8 science and technology word Word study: Suffix focus: -tion commonly forms a noun naming an action, process, or result.	flexão	Diffraction causes water waves to fan out after passing through a narrow gap.
209	interference	noun Study Field: Grade 8 science and technology word Word study: Suffix focus: -ence commonly forms a noun naming an action, quality, or state.	interferência	Interference creates alternating bright and dark bands on the screen.
210	resonance	noun Study Field: Grade 8 science and technology word Word study: Suffix focus: -ance commonly forms a noun naming an action, quality, or state.	ressonância	Resonance made the tuning fork vibrate more intensely.
211	photon	noun Study Field: Grade 8 science and technology word Word study: Base-form focus: photon is the dictionary headword; compare its inflected or derived forms in context.	1. fotão 2. fóton	A photon of visible light can be absorbed by a plant pigment.
212	centripetal	adjective Study Field: Grade 8 science and technology word Word study: Base-form focus: centripetal is the dictionary headword; compare its inflected or derived forms in context.	centrípeto	Centripetal force keeps the ball moving in a circle on its string.
213	centrifugal	adjective Study Field: Grade 8 science and technology word Word study: Base-form focus: centrifugal is the dictionary headword; compare its inflected or derived forms in context.	centrífugo	Passengers sense a centrifugal effect when a car turns sharply.
214	torque	noun Study Field: Grade 8 science and technology word Word study: Base-form focus: torque is the dictionary headword; compare its inflected or derived forms in context.	1. torque 2. binário 3. momento de forças	A longer wrench can produce more torque on a tight bolt.
215	conductivity	noun Study Field: Grade 8 science and technology word Word study: Suffix focus: -ity commonly forms a noun naming a quality, state, or condition.	condutividade	Copper's high conductivity makes it useful in electrical wiring.
216	series-circuit	noun Study Field: Grade 8 science and technology word Word study: Term structure: series + circuit. Study the complete expression as one field-specific unit.	circuito em série	One broken bulb can interrupt an entire series-circuit.
217	parallel-circuit	noun Study Field: Grade 8 science and technology word Word study: Term structure: parallel + circuit. Study the complete expression as one field-specific unit.	circuito paralelo	In a parallel-circuit, one lamp can stay lit when another fails.
218	ion	noun Study Field: Grade 8 science and technology word Word study: Base-form focus: ion is the dictionary headword; compare its inflected or derived forms in context.	1. íon 2. ião	A sodium atom becomes a positive ion after losing an electron.
219	proton	noun Study Field: Grade 8 science and technology word Word study: Base-form focus: proton is the dictionary headword; compare its inflected or derived forms in context.	1. próton 2. protão	The proton count determines which element an atom is.
220	neutron	noun Study Field: Grade 8 science and technology word Word study: Base-form focus: neutron is the dictionary headword; compare its inflected or derived forms in context.	1. nêutron 2. neutrão	A neutron adds mass to an atom without adding electric charge.
221	electron	noun Study Field: Grade 8 science and technology word Word study: Base-form focus: electron is the dictionary headword; compare its inflected or derived forms in context.	1. elétron 2. eletrão 3. electrão	An electron may move to a higher energy level after absorbing energy.
222	valence	noun Study Field: Grade 8 science and technology word Word study: Base-form focus: valence is the dictionary headword; compare its inflected or derived forms in context.	valência	Carbon's valence allows it to form four covalent bonds.
223	covalent	adjective Study Field: Grade 8 science and technology word Word study: Base-form focus: covalent is the dictionary headword; compare its inflected or derived forms in context.	covalente	Two hydrogen atoms form a covalent bond by sharing electrons.
224	ionic	adjective Study Field: Grade 8 science and technology word Word study: Base-form focus: ionic is the dictionary headword; compare its inflected or derived forms in context.	1. iónico 2. iônico	Table salt is an ionic compound made from sodium and chloride ions.
225	acidity	noun Study Field: Grade 8 science and technology word Word study: Suffix focus: -ity commonly forms a noun naming a quality, state, or condition.	acidez	A pH test can compare the acidity of lemon juice and water.

Page 9 vocabulary review

Review five selected words from page 9.

Cloze vocabulary quiz

1. Copper's high ___ makes it useful in electrical wiring.

Answer: conductivity

2. Heating the water increases its ___.

Answer: thermal-energy

3. One broken bulb can interrupt an entire ___.

Answer: series-circuit

4. At the top of its swing, the pendulum's ___ is mostly stored.

Answer: mechanical-energy

5. In a ___, one lamp can stay lit when another fails.

Answer: parallel-circuit

Page 10: words 226–250

Vocabulary page 10
#	Word	Details	Meaning	Sample sentence
226	alkalinity	noun Study Field: Grade 8 science and technology word Word study: Suffix focus: -ity commonly forms a noun naming a quality, state, or condition.	alcalinidade	Limestone can increase a lake's alkalinity.
227	oxidation	noun Study Field: Grade 8 science and technology word Word study: Suffix focus: -ation commonly forms a noun naming an action, process, or result.	oxidação	Rust forms through oxidation of iron.
228	reduction	noun Study Field: Grade 8 science and technology word Word study: Suffix focus: -tion commonly forms a noun naming an action, process, or result.	redução	During reduction, copper ions gain electrons and become copper atoms.
229	combustion	noun Study Field: Grade 8 science and technology word Word study: Suffix focus: -tion commonly forms a noun naming an action, process, or result.	combustão	Complete combustion of the fuel produces carbon dioxide and water.
230	endothermic	adjective Study Field: Grade 8 science and technology word Word study: Base-form focus: endothermic is the dictionary headword; compare its inflected or derived forms in context.	endotérmico	The endothermic reaction made the container feel cold.
231	exothermic	adjective Study Field: Grade 8 science and technology word Word study: Base-form focus: exothermic is the dictionary headword; compare its inflected or derived forms in context.	exotérmico	The exothermic reaction warmed the solution.
232	cell-membrane	noun Study Field: Grade 8 science and technology word Word study: Term structure: cell + membrane. Study the complete expression as one field-specific unit.	membrana celular	The cell-membrane allows some substances to pass while blocking others.
233	mitochondrion	noun Study Field: Grade 8 science and technology word Word study: Base-form focus: mitochondrion is the dictionary headword; compare its inflected or derived forms in context.	mitocôndria	A muscle cell contains many mitochondria, and each mitochondrion helps supply energy.
234	chloroplast	noun Study Field: Grade 8 science and technology word Word study: Base-form focus: chloroplast is the dictionary headword; compare its inflected or derived forms in context.	cloroplasto	Chlorophyll inside each chloroplast absorbs light.
235	ribosome	noun Study Field: Grade 8 science and technology word Word study: Base-form focus: ribosome is the dictionary headword; compare its inflected or derived forms in context.	1. ribossomo 2. ribossoma	A ribosome links amino acids in the order specified by genetic instructions.
236	genotype	noun Study Field: Grade 8 science and technology word Word study: Base-form focus: genotype is the dictionary headword; compare its inflected or derived forms in context.	genótipo	The plant's genotype includes one allele for tall growth and one for short growth.
237	phenotype	noun Study Field: Grade 8 science and technology word Word study: Base-form focus: phenotype is the dictionary headword; compare its inflected or derived forms in context.	fenótipo	Sunlight can influence the color phenotype of some plants.
238	meiosis	noun Study Field: Grade 8 science and technology word Word study: Base-form focus: meiosis is the dictionary headword; compare its inflected or derived forms in context.	1. meiose 2. miose	Meiosis creates genetic variation in eggs and sperm.
239	mitosis	noun Study Field: Grade 8 science and technology word Word study: Base-form focus: mitosis is the dictionary headword; compare its inflected or derived forms in context.	mitose	Skin cells multiply through mitosis as a cut heals.
240	natural-selection	noun Study Field: Grade 8 science and technology word Word study: Term structure: natural + selection. Study the complete expression as one field-specific unit.	seleção natural	Natural-selection favored moths whose coloring hid them from predators.
241	speciation	noun Study Field: Grade 8 science and technology word Word study: Suffix focus: -ation commonly forms a noun naming an action, process, or result.	especiação	Long isolation on separate islands can lead to speciation.
242	transcription	noun Study Field: Grade 8 science and technology word Word study: Suffix focus: -tion commonly forms a noun naming an action, process, or result.	transcrição	During transcription, a cell produces an RNA copy of a gene.
243	succession	noun Study Field: Grade 8 science and technology word Word study: Suffix focus: -sion commonly forms a noun naming an action, process, or result.	sucessão	After the lava cools, ecological succession begins with lichens.
244	hormone	noun Study Field: Grade 8 science and technology word Word study: Base-form focus: hormone is the dictionary headword; compare its inflected or derived forms in context.	1. hormônio 2. hormona	The hormone insulin helps regulate blood glucose.
245	antibiotic	noun Study Field: Grade 8 science and technology word Word study: Prefix focus: anti- means against or opposed to.	antibiótico	A doctor may prescribe an antibiotic for a confirmed bacterial infection.
246	tectonic-plate	noun Study Field: Grade 8 science and technology word Word study: Term structure: tectonic + plate. Study the complete expression as one field-specific unit.	placa tectônica	The Pacific tectonic-plate meets several other plates along active boundaries.
247	codon	noun Study Field: Grade 8 science and technology word Word study: Base-form focus: codon is the dictionary headword; compare its inflected or derived forms in context.	códon	Each codon in messenger RNA directs one step in protein assembly.
248	subduction	noun Study Field: Grade 8 science and technology word Word study: Suffix focus: -tion commonly forms a noun naming an action, process, or result.	subdução	Subduction can produce deep ocean trenches and volcanic arcs.
249	convection-current	noun Study Field: Grade 8 science and technology word Word study: Term structure: convection + current. Study the complete expression as one field-specific unit.	corrente de convecção	A convection-current forms in the heated water.
250	fault-line	noun Study Field: Grade 8 science and technology word Word study: Term structure: fault + line. Study the complete expression as one field-specific unit.	linha de falha	The earthquake began near a mapped fault-line.

Evidence of Change

Reading practice for pages 10–12. Five relevant words are highlighted.

English reading

During transcription, a cell copies genetic information into RNA. Over generations, natural-selection can favor useful variations, and isolated populations may undergo speciation. These biological processes differ from combustion, a chemical reaction involving oxygen, and from a simple reduction in population size.

Portuguese translation

A reviewed translation is not available for this passage yet.

Reading comprehension

1. What happens during transcription?

Genetic information is copied into RNA.

2. What may happen to isolated populations?

They may undergo speciation.

3. Is combustion a biological process?

No, combustion is a chemical reaction.

Cloze vocabulary quiz

1. ___ favored moths whose coloring hid them from predators.

Answer: natural-selection

2. During ___, copper ions gain electrons and become copper atoms.

Answer: reduction

3. Long isolation on separate islands can lead to ___.

Answer: speciation

4. Complete ___ of the fuel produces carbon dioxide and water.

Answer: combustion

5. During ___, a cell produces an RNA copy of a gene.

Answer: transcription

Page 11: words 251–275

Vocabulary page 11
#	Word	Details	Meaning	Sample sentence
251	seismic-wave	noun Study Field: Grade 8 science and technology word Word study: Term structure: seismic + wave. Study the complete expression as one field-specific unit.	onda sísmica	A seismic-wave reached the distant station several minutes after the quake.
252	rock-cycle	noun Study Field: Grade 8 science and technology word Word study: Term structure: rock + cycle. Study the complete expression as one field-specific unit.	ciclo das rochas	Melting, cooling, erosion, and pressure drive the rock-cycle.
253	greenhouse-effect	noun Study Field: Grade 8 science and technology word Word study: Term structure: greenhouse + effect. Study the complete expression as one field-specific unit.	efeito estufa	Without the natural greenhouse-effect, Earth's average temperature would be much lower.
254	carbon-cycle	noun Study Field: Grade 8 science and technology word Word study: Term structure: carbon + cycle. Study the complete expression as one field-specific unit.	ciclo do carbono	Photosynthesis removes carbon dioxide from the air as part of the carbon-cycle.
255	ocean-current	noun Study Field: Grade 8 science and technology word Word study: Term structure: ocean + current. Study the complete expression as one field-specific unit.	corrente oceânica	A warm ocean-current can raise winter temperatures along a coast.
256	programming	noun Study Field: Grade 8 science and technology word Word study: Base-form focus: programming is the dictionary headword; compare its inflected or derived forms in context.	programação	Programming the robot required a loop that repeated the movement.
257	bandwidth	noun Study Field: Grade 8 science and technology word Word study: Base-form focus: bandwidth is the dictionary headword; compare its inflected or derived forms in context.	largura de banda	Streaming several videos at once uses considerable bandwidth.
258	binary	adjective Study Field: Grade 8 science and technology word Word study: Base-form focus: binary is the dictionary headword; compare its inflected or derived forms in context.	binário	Computers store many kinds of information in binary form using zeros and ones.
259	nanotechnology	noun Study Field: Grade 8 science and technology word Word study: Root and suffix focus: -logy means the study of a subject.	nanotecnologia	Nanotechnology can create coatings that resist water and stains.
260	telemetry	noun Study Field: Grade 8 science and technology word Word study: Root and suffix focus: -metry relates to measuring.	telemetria	Satellite telemetry reported the spacecraft's temperature and speed.
261	microprocessor	noun Study Field: Grade 8 science and technology word Word study: Prefix focus: micro- means small.	microprocessador	The washing machine's microprocessor controls each cycle.
262	hardware	noun Study Field: Grade 8 science and technology word Word study: Base-form focus: hardware is the dictionary headword; compare its inflected or derived forms in context.	hardware	The keyboard and monitor are computer hardware.
263	concave	adjective Study Field: Grade 8 science and technology word Word study: Base-form focus: concave is the dictionary headword; compare its inflected or derived forms in context.	côncavo	A concave mirror can focus parallel light rays.
264	convex	adjective Study Field: Grade 8 science and technology word Word study: Base-form focus: convex is the dictionary headword; compare its inflected or derived forms in context.	convexo	A convex lens can bring light rays together.
265	focal-point	noun Study Field: Grade 8 science and technology word Word study: Term structure: focal + point. Study the complete expression as one field-specific unit.	ponto focal	The paper began to warm when sunlight converged at the focal-point.
266	lens	noun Study Field: Grade 8 science and technology word Word study: Base-form focus: lens is the dictionary headword; compare its inflected or derived forms in context.	lente	The microscope's objective lens magnifies the specimen.
267	polarization	noun Study Field: Grade 8 science and technology word Word study: Suffix focus: -ization forms a noun for a process of making or becoming.	polarização	Polarization helps sunglasses reduce reflected glare.
268	ultraviolet	adjective Study Field: Grade 8 science and technology word Word study: Base-form focus: ultraviolet is the dictionary headword; compare its inflected or derived forms in context.	ultravioleta	Ultraviolet radiation can damage unprotected skin.
269	infrared	adjective Study Field: Grade 8 science and technology word Word study: Base-form focus: infrared is the dictionary headword; compare its inflected or derived forms in context.	infravermelho	A thermal camera detects infrared radiation from warm objects.
270	x-ray	noun Study Field: Grade 8 science and technology word Word study: Term structure: x + ray. Study the complete expression as one field-specific unit.	raios X	An x-ray revealed a small fracture in the bone.
271	gamma-ray	noun Study Field: Grade 8 science and technology word Word study: Term structure: gamma + ray. Study the complete expression as one field-specific unit.	raio gama	A gamma-ray can pass through materials that block visible light.
272	radio-wave	noun Study Field: Grade 8 science and technology word Word study: Term structure: radio + wave. Study the complete expression as one field-specific unit.	onda de rádio	The antenna transmits a radio-wave carrying the audio signal.
273	microwave	noun Study Field: Grade 8 science and technology word Word study: Base-form focus: microwave is the dictionary headword; compare its inflected or derived forms in context.	micro-onda	A microwave in radar can reflect from an approaching storm.
274	visible-light	noun Study Field: Grade 8 science and technology word Word study: Term structure: visible + light. Study the complete expression as one field-specific unit.	luz visível	A prism separates visible-light into a band of colors.
275	sound-wave	noun Study Field: Grade 8 science and technology word Word study: Term structure: sound + wave. Study the complete expression as one field-specific unit.	onda sonora	The sound-wave traveled through air from the speaker to the microphone.

Page 11 vocabulary review

Review five selected words from page 11.

Cloze vocabulary quiz

1. Without the natural ___, Earth's average temperature would be much lower.

Answer: greenhouse-effect

2. The microscope's objective ___ magnifies the specimen.

Answer: lens

3. Photosynthesis removes carbon dioxide from the air as part of the ___.

Answer: carbon-cycle

4. ___ helps sunglasses reduce reflected glare.

Answer: polarization

5. A warm ___ can raise winter temperatures along a coast.

Answer: ocean-current

Page 12: words 276–300

Vocabulary page 12
#	Word	Details	Meaning	Sample sentence
276	pitch	noun Study Field: Grade 8 science and technology word Word study: Base-form focus: pitch is the dictionary headword; compare its inflected or derived forms in context.	1. altura 2. agudeza 3. agudez	A faster vibration produces a higher pitch.
277	decibel	noun Study Field: Grade 8 science and technology word Word study: Base-form focus: decibel is the dictionary headword; compare its inflected or derived forms in context.	decibel	A whisper has a much lower decibel level than a siren.
278	echo	noun Study Field: Grade 8 science and technology word Word study: Base-form focus: echo is the dictionary headword; compare its inflected or derived forms in context.	eco	The shout returned as an echo from the canyon wall.
279	gear-ratio	noun Study Field: Grade 8 science and technology word Word study: Term structure: gear + ratio. Study the complete expression as one field-specific unit.	relação de transmissão	Changing the gear-ratio increased the bicycle wheel's turning force.
280	power	noun Study Field: Grade 8 science and technology word Word study: Base-form focus: power is the dictionary headword; compare its inflected or derived forms in context.	potência	The motor's power tells how quickly it can perform work.
281	horsepower	noun Study Field: Grade 8 science and technology word Word study: Base-form focus: horsepower is the dictionary headword; compare its inflected or derived forms in context.	1. cavalo-vapor 2. cavalo de vapor	The larger engine produces greater horsepower.
282	periodic-table	noun Study Field: Grade 8 science and technology word Word study: Term structure: periodic + table. Study the complete expression as one field-specific unit.	tabela periódica	The periodic-table places elements with similar behaviors in the same column.
283	atomic-number	noun Study Field: Grade 8 science and technology word Word study: Term structure: atomic + number. Study the complete expression as one field-specific unit.	número atômico	Oxygen has an atomic-number of eight.
284	atomic-mass	noun Study Field: Grade 8 science and technology word Word study: Term structure: atomic + mass. Study the complete expression as one field-specific unit.	massa atômica	The periodic table lists chlorine's atomic-mass as about 35.45.
285	chemical-symbol	noun Study Field: Grade 8 science and technology word Word study: Term structure: chemical + symbol. Study the complete expression as one field-specific unit.	símbolo químico	Fe is the chemical-symbol for iron.
286	electron-shell	noun Study Field: Grade 8 science and technology word Word study: Term structure: electron + shell. Study the complete expression as one field-specific unit.	camada de elétrons	The first electron-shell can hold two electrons.
287	aqueous	adjective Study Field: Grade 8 science and technology word Word study: Suffix focus: -ous commonly forms an adjective meaning full of or characterized by.	1. aquoso 2. áqueo	The label aq indicates that the substance is in an aqueous solution.
288	colloid	noun Study Field: Grade 8 science and technology word Word study: Base-form focus: colloid is the dictionary headword; compare its inflected or derived forms in context.	coloide	Fog is a colloid of liquid droplets dispersed in air.
289	saturated	adjective Study Field: Grade 8 science and technology word Word study: Base-form focus: saturated is the dictionary headword; compare its inflected or derived forms in context.	saturado	No more sugar dissolved once the solution became saturated.
290	unsaturated	adjective Study Field: Grade 8 science and technology word Word study: Base-form focus: unsaturated is the dictionary headword; compare its inflected or derived forms in context.	insaturado	The unsaturated solution accepted another spoonful of salt.
291	supersaturated	adjective Study Field: Grade 8 science and technology word Word study: Base-form focus: supersaturated is the dictionary headword; compare its inflected or derived forms in context.	supersaturado	A seed crystal caused the supersaturated solution to crystallize rapidly.
292	dominant	adjective Study Field: Grade 8 science and technology word Word study: Base-form focus: dominant is the dictionary headword; compare its inflected or derived forms in context.	dominante	A dominant allele can mask the effect of a recessive allele.
293	recessive	adjective Study Field: Grade 8 science and technology word Word study: Suffix focus: -ive commonly forms an adjective meaning having a quality or tendency.	recessivo	A recessive trait may appear when an organism inherits two recessive alleles.
294	homozygous	adjective Study Field: Grade 8 science and technology word Word study: Suffix focus: -ous commonly forms an adjective meaning full of or characterized by.	homozigoto	A homozygous plant carries two matching alleles for seed color.
295	heterozygous	adjective Study Field: Grade 8 science and technology word Word study: Suffix focus: -ous commonly forms an adjective meaning full of or characterized by.	heterozigoto	A heterozygous organism can pass either allele to its offspring.
296	sex-linked	adjective Study Field: Grade 8 science and technology word Word study: Term structure: sex + linked. Study the complete expression as one field-specific unit.	ligado ao sexo	Red-green color blindness is often taught as a sex-linked trait.
297	pedigree	noun Study Field: Grade 8 science and technology word Word study: Base-form focus: pedigree is the dictionary headword; compare its inflected or derived forms in context.	pedigree	The pedigree suggests that the trait is recessive.
298	genetic-code	noun Study Field: Grade 8 science and technology word Word study: Term structure: genetic + code. Study the complete expression as one field-specific unit.	código genético	Nearly all organisms use the same basic genetic-code.
299	DNA	noun Study Field: Grade 8 science and technology word Word study: Capitalization focus: DNA is an abbreviation or initialism; preserve its capital letters.	ADN	A DNA sequence contains information that cells can copy.
300	RNA	noun Study Field: Grade 8 science and technology word Word study: Capitalization focus: RNA is an abbreviation or initialism; preserve its capital letters.	1. ARN 2. RNA	Messenger RNA carries a gene's instructions to a ribosome.

Page 12 vocabulary review

Review five selected words from page 12.

Cloze vocabulary quiz

1. The shout returned as an ___ from the canyon wall.

Answer: echo

2. A seed crystal caused the ___ solution to crystallize rapidly.

Answer: supersaturated

3. Changing the ___ increased the bicycle wheel's turning force.

Answer: gear-ratio

4. A ___ allele can mask the effect of a recessive allele.

Answer: dominant

5. The motor's ___ tells how quickly it can perform work.

Answer: power

Page 13: words 301–325

Vocabulary page 13
#	Word	Details	Meaning	Sample sentence
301	linear-equation	noun Study Field: Grade 8 mathematics and economics word Word study: Term structure: linear + equation. Study the complete expression as one field-specific unit.	equação linear	The linear-equation y = 3x + 2 has a slope of three.
302	y-intercept	noun Study Field: Grade 8 mathematics and economics word Word study: Term structure: y + intercept. Study the complete expression as one field-specific unit.	interceptação y	The line's y-intercept is (0, 4).
303	x-intercept	noun Study Field: Grade 8 mathematics and economics word Word study: Term structure: x + intercept. Study the complete expression as one field-specific unit.	interceptação x	The graph has an x-intercept at (-2, 0).
304	fixed-cost	noun Study Field: Grade 8 mathematics and economics word Word study: Term structure: fixed + cost. Study the complete expression as one field-specific unit.	custo fixo	Monthly rent remains a fixed-cost whether the bakery sells ten loaves or a thousand.
305	variable-cost	noun Study Field: Grade 8 mathematics and economics word Word study: Term structure: variable + cost. Study the complete expression as one field-specific unit.	custo variável	Flour is a variable-cost because the bakery buys more when it makes more bread.
306	line-of-best-fit	noun Study Field: Grade 8 mathematics and economics word Word study: Term structure: line + of + best + fit. Study the complete expression as one field-specific unit.	linha de melhor ajuste	The line-of-best-fit shows that study time and test scores generally rise together.
307	association	noun Study Field: Grade 8 mathematics and economics word Word study: Suffix focus: -ation commonly forms a noun naming an action, process, or result.	associação	The scatter plot suggests a positive association between temperature and ice-cream sales.
308	sales-tax	noun Study Field: Grade 8 mathematics and economics word Word study: Term structure: sales + tax. Study the complete expression as one field-specific unit.	imposto sobre vendas	The receipt lists sales-tax separately from the item's price.
309	direct-variation	noun Study Field: Grade 8 mathematics and economics word Word study: Term structure: direct + variation. Study the complete expression as one field-specific unit.	variação direta	The distance traveled shows direct-variation with time when speed remains constant.
310	inverse-variation	noun Study Field: Grade 8 mathematics and economics word Word study: Term structure: inverse + variation. Study the complete expression as one field-specific unit.	variação inversa	For a fixed distance, travel time shows inverse-variation with speed.
311	rate-of-change	noun Study Field: Grade 8 mathematics and economics word Word study: Term structure: rate + of + change. Study the complete expression as one field-specific unit.	taxa de mudança	The graph's rate-of-change is five kilometers per hour.
312	property-tax	noun Study Field: Grade 8 mathematics and economics word Word study: Term structure: property + tax. Study the complete expression as one field-specific unit.	imposto sobre a propriedade	The town uses property-tax revenue to support schools and fire services.
313	scientific-notation	noun Study Field: Grade 8 mathematics and economics word Word study: Term structure: scientific + notation. Study the complete expression as one field-specific unit.	notação científica	The distance 150,000,000 kilometers is 1.5 × 10⁸ in scientific-notation.
314	square-root	noun Study Field: Grade 8 mathematics and economics word Word study: Term structure: square + root. Study the complete expression as one field-specific unit.	raiz quadrada	The principal square-root of 81 is 9.
315	cube-root	noun Study Field: Grade 8 mathematics and economics word Word study: Term structure: cube + root. Study the complete expression as one field-specific unit.	raiz cúbica	The cube-root of 125 is 5.
316	irrational-number	noun Study Field: Grade 8 mathematics and economics word Word study: Term structure: irrational + number. Study the complete expression as one field-specific unit.	número irracional	The number π is an irrational-number with a nonrepeating decimal.
317	rational-number	noun Study Field: Grade 8 mathematics and economics word Word study: Term structure: rational + number. Study the complete expression as one field-specific unit.	número racional	The decimal 0.75 is a rational-number because it equals 3/4.
318	payroll-tax	noun Study Field: Grade 8 mathematics and economics word Word study: Term structure: payroll + tax. Study the complete expression as one field-specific unit.	imposto sobre folha de pagamento	The pay stub shows the payroll-tax withheld from the worker's earnings.
319	pythagorean-theorem	noun Study Field: Grade 8 mathematics and economics word Word study: Term structure: pythagorean + theorem. Study the complete expression as one field-specific unit.	teorema de Pitágoras	The pythagorean-theorem confirms that a triangle with sides 3, 4, and 5 is right.
320	hypotenuse	noun Study Field: Grade 8 mathematics and economics word Word study: Base-form focus: hypotenuse is the dictionary headword; compare its inflected or derived forms in context.	hipotenusa	The hypotenuse is the longest side of a right triangle.
321	congruence	noun Study Field: Grade 8 mathematics and economics word Word study: Suffix focus: -ence commonly forms a noun naming an action, quality, or state.	congruência	A sequence of rigid motions can demonstrate the triangles' congruence.
322	transformation	noun Study Field: Grade 8 mathematics and economics word Word study: Suffix focus: -ation commonly forms a noun naming an action, process, or result.	transformação	A rotation is a transformation that turns a figure around a fixed point.
323	alternate-interior-angles	noun Study Field: Grade 8 mathematics and economics word Word study: Term structure: alternate + interior + angles. Study the complete expression as one field-specific unit.	ângulos internos alternativos	When parallel lines are cut by a transversal, alternate-interior-angles are congruent.
324	corresponding-angles	noun Study Field: Grade 8 mathematics and economics word Word study: Term structure: corresponding + angles. Study the complete expression as one field-specific unit.	ângulos correspondentes	Equal corresponding-angles indicate that the two lines are parallel.
325	vertical-angles	noun Study Field: Grade 8 mathematics and economics word Word study: Term structure: vertical + angles. Study the complete expression as one field-specific unit.	ângulos verticais	Vertical-angles always have equal measures.

The Theater's Costs

Reading practice for pages 13–15. Five relevant words are highlighted.

English reading

A theater models ticket sales with a linear-equation. Its fixed-cost includes the stage rental, while each printed program adds a variable-cost. On the graph, the y-intercept represents the starting expense, and the x-intercept shows when revenue finally balances cost.

Portuguese translation

A reviewed translation is not available for this passage yet.

Reading comprehension

1. What is one fixed cost?

The stage rental is a fixed cost.

2. What adds a variable cost?

Each printed program adds a variable cost.

3. What does the x-intercept show?

It shows when revenue balances cost.

Page 14: words 326–350

Vocabulary page 14
#	Word	Details	Meaning	Sample sentence
326	frequency-table	noun Study Field: Grade 8 mathematics and economics word Word study: Term structure: frequency + table. Study the complete expression as one field-specific unit.	tabela de frequência	The frequency-table shows that blue was selected eight times.
327	box-plot	noun Study Field: Grade 8 mathematics and economics word Word study: Term structure: box + plot. Study the complete expression as one field-specific unit.	1. diagrama de caixa 2. box plot	The box-plot makes the two classes' medians easy to compare.
328	interquartile-range	noun Study Field: Grade 8 mathematics and economics word Word study: Term structure: interquartile + range. Study the complete expression as one field-specific unit.	intervalo interquartil	The interquartile-range measures the spread of the middle half of the data.
329	sample-space	noun Study Field: Grade 8 mathematics and economics word Word study: Term structure: sample + space. Study the complete expression as one field-specific unit.	espaço amostral	A coin toss has the sample-space {heads, tails}.
330	independent-event	noun Study Field: Grade 8 mathematics and economics word Word study: Term structure: independent + event. Study the complete expression as one field-specific unit.	evento independente	Rolling a die is an independent-event from flipping a coin.
331	dependent-event	noun Study Field: Grade 8 mathematics and economics word Word study: Term structure: dependent + event. Study the complete expression as one field-specific unit.	evento dependente	Drawing a second card without replacement is a dependent-event.
332	compound-event	noun Study Field: Grade 8 mathematics and economics word Word study: Term structure: compound + event. Study the complete expression as one field-specific unit.	evento composto	Rolling an even number and then a six is a compound-event.
333	random-sample	noun Study Field: Grade 8 mathematics and economics word Word study: Term structure: random + sample. Study the complete expression as one field-specific unit.	amostra aleatória	The researcher used a random-sample to reduce selection bias.
334	biased-sample	noun Study Field: Grade 8 mathematics and economics word Word study: Term structure: biased + sample. Study the complete expression as one field-specific unit.	amostra tendenciosa	Surveying only basketball players creates a biased-sample of student sports preferences.
335	opportunity-cost	noun Study Field: Grade 8 mathematics and economics word Word study: Term structure: opportunity + cost. Study the complete expression as one field-specific unit.	custo de oportunidade	The opportunity-cost of attending the concert is the shift Maya cannot work.
336	price	noun Study Field: Grade 8 mathematics and economics word Word study: Base-form focus: price is the dictionary headword; compare its inflected or derived forms in context.	preço	A shortage of oranges caused the price of juice to rise.
337	services	noun Study Field: Grade 8 mathematics and economics word Word study: Base-form focus: services is the dictionary headword; compare its inflected or derived forms in context.	serviços	Haircuts and legal advice are services.
338	productivity	noun Study Field: Grade 8 mathematics and economics word Word study: Suffix focus: -ity commonly forms a noun naming a quality, state, or condition.	produtividade	New equipment increased the factory's productivity without extending work hours.
339	monopoly	noun Study Field: Grade 8 mathematics and economics word Word study: Base-form focus: monopoly is the dictionary headword; compare its inflected or derived forms in context.	monopólio	Regulators investigated whether the merger would create a monopoly.
340	gross-domestic-product	noun Study Field: Grade 8 mathematics and economics word Word study: Term structure: gross + domestic + product. Study the complete expression as one field-specific unit.	produto Interno Bruto	Economists use gross-domestic-product to estimate the size of a national economy.
341	quota	noun Study Field: Grade 8 mathematics and economics word Word study: Base-form focus: quota is the dictionary headword; compare its inflected or derived forms in context.	1. cota 2. quota	The fishing quota protects the population from excessive harvesting.
342	exchange-rate	noun Study Field: Grade 8 mathematics and economics word Word study: Term structure: exchange + rate. Study the complete expression as one field-specific unit.	taxa de câmbio	A changing exchange-rate altered the cost of imported bicycles.
343	loss	noun Study Field: Grade 8 mathematics and economics word Word study: Base-form focus: loss is the dictionary headword; compare its inflected or derived forms in context.	1. pesar 2. perda	The shop reported a loss after repairs cost more than monthly sales.
344	subsidy	noun Study Field: Grade 8 mathematics and economics word Word study: Base-form focus: subsidy is the dictionary headword; compare its inflected or derived forms in context.	1. subsídio 2. subvenção	A transit subsidy reduced fares for low-income riders.
345	banking	noun Study Field: Grade 8 mathematics and economics word Word study: Base-form focus: banking is the dictionary headword; compare its inflected or derived forms in context.	bancário	Online banking allows customers to transfer funds without visiting a branch.
346	stock	noun Study Field: Grade 8 mathematics and economics word Word study: Base-form focus: stock is the dictionary headword; compare its inflected or derived forms in context.	ação	Buying one stock gives an investor a small ownership stake in the company.
347	bond	noun Study Field: Grade 8 mathematics and economics word Word study: Base-form focus: bond is the dictionary headword; compare its inflected or derived forms in context.	1. aparelho 2. ajuste 3. amarração	The city issued a bond to finance a new water system.
348	salary	noun Study Field: Grade 8 mathematics and economics word Word study: Base-form focus: salary is the dictionary headword; compare its inflected or derived forms in context.	salário	The job offer includes an annual salary and health benefits.
349	insurance	noun Study Field: Grade 8 mathematics and economics word Word study: Suffix focus: -ance commonly forms a noun naming an action, quality, or state.	seguro	Home insurance helped pay for repairs after the storm.
350	mortgage	noun Study Field: Grade 8 mathematics and economics word Word study: Base-form focus: mortgage is the dictionary headword; compare its inflected or derived forms in context.	hipoteca	The family compared interest rates before choosing a mortgage.

Page 15: words 351–375

Vocabulary page 15
#	Word	Details	Meaning	Sample sentence
351	lease	noun Study Field: Grade 8 mathematics and economics word Word study: Base-form focus: lease is the dictionary headword; compare its inflected or derived forms in context.	1. arrendar 2. arrendamento	The apartment lease lasts twelve months.
352	collateral	noun Study Field: Grade 8 mathematics and economics word Word study: Base-form focus: collateral is the dictionary headword; compare its inflected or derived forms in context.	garantia	The farmer used equipment as collateral for the business loan.
353	bankruptcy	noun Study Field: Grade 8 mathematics and economics word Word study: Base-form focus: bankruptcy is the dictionary headword; compare its inflected or derived forms in context.	1. falência 2. bancarrota	Bankruptcy allowed the company to reorganize what it owed.
354	system-of-equations	noun Study Field: Grade 8 mathematics and economics word Word study: Term structure: system + of + equations. Study the complete expression as one field-specific unit.	sistema de equações	The system-of-equations intersects at the point that satisfies both equations.
355	elimination	noun Study Field: Grade 8 mathematics and economics word Word study: Suffix focus: -ation commonly forms a noun naming an action, process, or result.	eliminação	Using elimination, Rae added the equations to remove y.
356	substitution	noun Study Field: Grade 8 mathematics and economics word Word study: Suffix focus: -tion commonly forms a noun naming an action, process, or result.	substituição	Through substitution, we replaced y with 2x + 1.
357	solution-set	noun Study Field: Grade 8 mathematics and economics word Word study: Term structure: solution + set. Study the complete expression as one field-specific unit.	conjunto de soluções	The inequality x > 4 has a solution-set containing every number greater than four.
358	linear-model	noun Study Field: Grade 8 mathematics and economics word Word study: Term structure: linear + model. Study the complete expression as one field-specific unit.	modelo linear	The scientist used a linear-model to estimate future water use.
359	polynomial	noun Study Field: Grade 8 mathematics and economics word Word study: Prefix focus: poly- means many.	1. polinômio 2. polinómio	The expression 3x² – 2x + 7 is a polynomial.
360	monomial	noun Study Field: Grade 8 mathematics and economics word Word study: Base-form focus: monomial is the dictionary headword; compare its inflected or derived forms in context.	1. monómio 2. monômio	The expression 6x³ is a monomial.
361	binomial	noun Study Field: Grade 8 mathematics and economics word Word study: Base-form focus: binomial is the dictionary headword; compare its inflected or derived forms in context.	1. binomial 2. binómio 3. binômio	The expression x + 5 is a binomial.
362	trinomial	noun Study Field: Grade 8 mathematics and economics word Word study: Base-form focus: trinomial is the dictionary headword; compare its inflected or derived forms in context.	1. trinómio 2. trinômio	The expression x² + 4x + 4 is a trinomial.
363	degree	noun Study Field: Grade 8 mathematics and economics word Word study: Base-form focus: degree is the dictionary headword; compare its inflected or derived forms in context.	grau	The polynomial 2x⁴ – x has degree four.
364	like-terms	noun Study Field: Grade 8 mathematics and economics word Word study: Term structure: like + terms. Study the complete expression as one field-specific unit.	termos semelhantes	The like-terms 3x and 8x combine to make 11x.
365	business-cycle	noun Study Field: Grade 8 mathematics and economics word Word study: Term structure: business + cycle. Study the complete expression as one field-specific unit.	ciclo de negócios	Employment often rises during the expansion phase of a business-cycle.
366	commutative-property	noun Study Field: Grade 8 mathematics and economics word Word study: Term structure: commutative + property. Study the complete expression as one field-specific unit.	propriedade comutativa	The commutative-property shows that 7 + 2 equals 2 + 7.
367	associative-property	noun Study Field: Grade 8 mathematics and economics word Word study: Term structure: associative + property. Study the complete expression as one field-specific unit.	propriedade associativa	The associative-property allows (2 × 3) × 5 to be regrouped as 2 × (3 × 5).
368	zero-product-property	noun Study Field: Grade 8 mathematics and economics word Word study: Term structure: zero + product + property. Study the complete expression as one field-specific unit.	propriedade de produto zero	The zero-product-property solves (x – 2)(x + 4) = 0.
369	angle-bisector	noun Study Field: Grade 8 mathematics and economics word Word study: Term structure: angle + bisector. Study the complete expression as one field-specific unit.	bissetriz do ângulo	The angle-bisector divides the 60-degree angle into two 30-degree angles.
370	perpendicular-bisector	noun Study Field: Grade 8 mathematics and economics word Word study: Term structure: perpendicular + bisector. Study the complete expression as one field-specific unit.	bissetriz perpendicular	Every point on the perpendicular-bisector is equally distant from the segment's endpoints.
371	midpoint	noun Study Field: Grade 8 mathematics and economics word Word study: Base-form focus: midpoint is the dictionary headword; compare its inflected or derived forms in context.	1. meio 2. metade	The midpoint of the segment from (0, 0) to (6, 4) is (3, 2).
372	distance-formula	noun Study Field: Grade 8 mathematics and economics word Word study: Term structure: distance + formula. Study the complete expression as one field-specific unit.	fórmula de distância	The distance-formula is based on the Pythagorean theorem.
373	pythagorean-triple	noun Study Field: Grade 8 mathematics and economics word Word study: Term structure: pythagorean + triple. Study the complete expression as one field-specific unit.	triplo pitagórico	The numbers 5, 12, and 13 form a pythagorean-triple.
374	scale-factor	noun Study Field: Grade 8 mathematics and economics word Word study: Term structure: scale + factor. Study the complete expression as one field-specific unit.	fator de escala	A scale-factor of two doubles every side length.
375	rigid-motion	noun Study Field: Grade 8 mathematics and economics word Word study: Term structure: rigid + motion. Study the complete expression as one field-specific unit.	movimento rígido	A reflection is a rigid-motion because the image remains congruent to the original.

Page 16: words 376–400

Vocabulary page 16
#	Word	Details	Meaning	Sample sentence
376	preimage	noun Study Field: Grade 8 mathematics and economics word Word study: Base-form focus: preimage is the dictionary headword; compare its inflected or derived forms in context.	pré-imagem	Triangle ABC is the preimage of the translated triangle A′B′C′.
377	orientation	noun Study Field: Grade 8 mathematics and economics word Word study: Suffix focus: -ation commonly forms a noun naming an action, process, or result.	orientação	A reflection reverses a polygon's orientation.
378	two-way-table	noun Study Field: Grade 8 mathematics and economics word Word study: Term structure: two + way + table. Study the complete expression as one field-specific unit.	mesa bidirecional	The two-way-table compares transportation choice with grade level.
379	relative-frequency	noun Study Field: Grade 8 mathematics and economics word Word study: Term structure: relative + frequency. Study the complete expression as one field-specific unit.	frequência relativa	Dividing each count by the total gives its relative-frequency.
380	bivariate-data	noun Study Field: Grade 8 mathematics and economics word Word study: Term structure: bivariate + data. Study the complete expression as one field-specific unit.	dados bivariados	The bivariate-data record each student's height and arm span.
381	univariate-data	noun Study Field: Grade 8 mathematics and economics word Word study: Term structure: univariate + data. Study the complete expression as one field-specific unit.	dados univariados	The list of daily temperatures is univariate-data.
382	cluster	noun Study Field: Grade 8 mathematics and economics word Word study: Base-form focus: cluster is the dictionary headword; compare its inflected or derived forms in context.	cluster	A cluster near the upper right appears in the scatter plot.
383	skewed	adjective Study Field: Grade 8 mathematics and economics word Word study: Base-form focus: skewed is the dictionary headword; compare its inflected or derived forms in context.	parcial	Household-income data are often skewed toward higher values.
384	variability	noun Study Field: Grade 8 mathematics and economics word Word study: Suffix focus: -ability forms a noun for the capacity to have a quality or perform an action.	variabilidade	A larger spread in scores indicates greater variability.
385	standard-deviation	noun Study Field: Grade 8 mathematics and economics word Word study: Term structure: standard + deviation. Study the complete expression as one field-specific unit.	desvio padrão	The consistent measurements have a small standard-deviation.
386	sampling-error	noun Study Field: Grade 8 mathematics and economics word Word study: Term structure: sampling + error. Study the complete expression as one field-specific unit.	erro de amostragem	A larger random sample can reduce sampling-error.
387	margin-of-error	noun Study Field: Grade 8 mathematics and economics word Word study: Term structure: margin + of + error. Study the complete expression as one field-specific unit.	margem de erro	The poll reports a margin-of-error of three percentage points.
388	economic-system	noun Study Field: Grade 8 mathematics and economics word Word study: Term structure: economic + system. Study the complete expression as one field-specific unit.	sistema econômico	An economic-system determines who makes major production decisions.
389	command-economy	noun Study Field: Grade 8 mathematics and economics word Word study: Term structure: command + economy. Study the complete expression as one field-specific unit.	economia de comando	In a command-economy, the government sets many output targets.
390	mixed-economy	noun Study Field: Grade 8 mathematics and economics word Word study: Term structure: mixed + economy. Study the complete expression as one field-specific unit.	economia mista	A mixed-economy allows private firms while regulating public utilities.
391	market-economy	noun Study Field: Grade 8 mathematics and economics word Word study: Term structure: market + economy. Study the complete expression as one field-specific unit.	economia de mercado	Competition influences what companies produce in a market-economy.
392	traditional-economy	noun Study Field: Grade 8 mathematics and economics word Word study: Term structure: traditional + economy. Study the complete expression as one field-specific unit.	economia tradicional	Fishing methods may pass through generations in a traditional-economy.
393	fiscal-policy	noun Study Field: Grade 8 mathematics and economics word Word study: Term structure: fiscal + policy. Study the complete expression as one field-specific unit.	política fiscal	The legislature changed fiscal-policy by increasing infrastructure spending.
394	monetary-policy	noun Study Field: Grade 8 mathematics and economics word Word study: Term structure: monetary + policy. Study the complete expression as one field-specific unit.	política monetária	The central bank tightened monetary-policy to slow inflation.
395	central-bank	noun Study Field: Grade 8 mathematics and economics word Word study: Term structure: central + bank. Study the complete expression as one field-specific unit.	banco central	The central-bank raised its benchmark interest rate.
396	commercial-bank	noun Study Field: Grade 8 mathematics and economics word Word study: Term structure: commercial + bank. Study the complete expression as one field-specific unit.	banco comercial	The commercial-bank approved a loan for the bakery.
397	interest-rate	noun Study Field: Grade 8 mathematics and economics word Word study: Term structure: interest + rate. Study the complete expression as one field-specific unit.	taxa de juro	A lower interest-rate reduces the monthly cost of a loan.
398	compound-interest	noun Study Field: Grade 8 mathematics and economics word Word study: Term structure: compound + interest. Study the complete expression as one field-specific unit.	juros compostos	Compound-interest causes long-term savings to grow more quickly.
399	simple-interest	noun Study Field: Grade 8 mathematics and economics word Word study: Term structure: simple + interest. Study the complete expression as one field-specific unit.	juros simples	The loan uses simple-interest based on its starting principal.
400	net-worth	noun Study Field: Grade 8 mathematics and economics word Word study: Term structure: net + worth. Study the complete expression as one field-specific unit.	patrimônio líquido	Subtracting liabilities from assets gives net-worth.

Turning a Figure

Reading practice for pages 16–18. Five relevant words are highlighted.

English reading

In geometry, Elena rotates a preimage and checks the new figure’s orientation. Later, she studies bivariate-data about study time and quiz scores. A two-way-table organizes the categories, while relative-frequency helps her compare groups of different sizes.

Portuguese translation

A reviewed translation is not available for this passage yet.

Reading comprehension

1. What does Elena rotate?

Elena rotates a preimage.

2. What data does she study?

She studies study time and quiz scores.

3. Why does she use relative frequency?

It helps compare groups of different sizes.

Page 17: words 401–425

Vocabulary page 17
#	Word	Details	Meaning	Sample sentence
401	mercantilism	noun Study Field: Grade 8 history, civics, and social science word Word study: Suffix focus: -ism often names a belief, system, movement, or practice.	mercantilismo	European mercantilism encouraged colonies to supply raw materials to the ruling country.
402	triangular-trade	noun Study Field: Grade 8 history, civics, and social science word Word study: Term structure: triangular + trade. Study the complete expression as one field-specific unit.	comércio triangular	The triangular-trade carried manufactured goods, enslaved people, and colonial products along different routes.
403	transatlantic	adjective Study Field: Grade 8 history, civics, and social science word Word study: Prefix focus: trans- means across, through, or beyond.	transatlântico	The transatlantic voyage took several weeks under sail.
404	declaration	noun Study Field: Grade 8 history, civics, and social science word Word study: Suffix focus: -ation commonly forms a noun naming an action, process, or result.	declaração	The delegates issued a declaration explaining their decision to seek independence.
405	federalism	noun Study Field: Grade 8 history, civics, and social science word Word study: Suffix focus: -ism often names a belief, system, movement, or practice.	federalismo	Under federalism, national and state governments exercise different powers.
406	separation-of-powers	noun Study Field: Grade 8 history, civics, and social science word Word study: Term structure: separation + of + powers. Study the complete expression as one field-specific unit.	separação de poderes	Separation-of-powers prevents one branch from performing every government function.
407	checks-and-balances	noun Study Field: Grade 8 history, civics, and social science word Word study: Term structure: checks + and + balances. Study the complete expression as one field-specific unit.	freios e contrapesos	A presidential veto is part of the checks-and-balances system.
408	ratification	noun Study Field: Grade 8 history, civics, and social science word Word study: Suffix focus: -ation commonly forms a noun naming an action, process, or result.	ratificação	The treaty required ratification by the legislature.
409	tyranny	noun Study Field: Grade 8 history, civics, and social science word Word study: Base-form focus: tyranny is the dictionary headword; compare its inflected or derived forms in context.	tirania	The pamphlet warned that unchecked authority could become tyranny.
410	judicial-review	noun Study Field: Grade 8 history, civics, and social science word Word study: Term structure: judicial + review. Study the complete expression as one field-specific unit.	revisão judicial	Through judicial-review, a court may invalidate an unconstitutional law.
411	due-process	noun Study Field: Grade 8 history, civics, and social science word Word study: Term structure: due + process. Study the complete expression as one field-specific unit.	devido processo	Due-process requires notice and a meaningful opportunity to be heard.
412	equal-protection	noun Study Field: Grade 8 history, civics, and social science word Word study: Term structure: equal + protection. Study the complete expression as one field-specific unit.	proteção igual	The plaintiffs argued that the policy violated equal-protection.
413	civil-liberty	noun Study Field: Grade 8 history, civics, and social science word Word study: Term structure: civil + liberty. Study the complete expression as one field-specific unit.	liberdade civil	Freedom of speech is a civil-liberty.
414	civil-right	noun Study Field: Grade 8 history, civics, and social science word Word study: Term structure: civil + right. Study the complete expression as one field-specific unit.	direito civil	The right to vote without racial discrimination is a civil-right.
415	abolitionism	noun Study Field: Grade 8 history, civics, and social science word Word study: Suffix focus: -ism often names a belief, system, movement, or practice.	abolicionismo	Abolitionism grew through speeches, newspapers, petitions, and resistance.
416	Manifest Destiny	proper noun Study Field: Grade 8 history, civics, and social science word Word study: Term structure: Manifest + Destiny. Study the complete expression as one field-specific unit.	destino manifesto	Supporters used Manifest Destiny to defend westward territorial expansion.
417	westward-expansion	noun Study Field: Grade 8 history, civics, and social science word Word study: Term structure: westward + expansion. Study the complete expression as one field-specific unit.	expansão para oeste	Westward-expansion displaced many Indigenous communities.
418	annexation	noun Study Field: Grade 8 history, civics, and social science word Word study: Suffix focus: -ation commonly forms a noun naming an action, process, or result.	anexação	The annexation of the region intensified a national dispute.
419	homestead	noun Study Field: Grade 8 history, civics, and social science word Word study: Base-form focus: homestead is the dictionary headword; compare its inflected or derived forms in context.	predicado	The family built a cabin on its prairie homestead.
420	reservation	noun Study Field: Grade 8 history, civics, and social science word Word study: Suffix focus: -ation commonly forms a noun naming an action, process, or result.	reserva	Federal policy forced many Native communities onto a reservation.
421	removal	noun Study Field: Grade 8 history, civics, and social science word Word study: Base-form focus: removal is the dictionary headword; compare its inflected or derived forms in context.	1. remoção 2. eliminação	The removal of Indigenous nations caused widespread suffering and death.
422	secession	noun Study Field: Grade 8 history, civics, and social science word Word study: Suffix focus: -sion commonly forms a noun naming an action, process, or result.	secessão	The state's secession deepened the constitutional crisis.
423	union	noun Study Field: Grade 8 history, civics, and social science word Word study: Base-form focus: union is the dictionary headword; compare its inflected or derived forms in context.	1. união 2. junção	Leaders debated how to preserve the union.
424	confederacy	noun Study Field: Grade 8 history, civics, and social science word Word study: Base-form focus: confederacy is the dictionary headword; compare its inflected or derived forms in context.	confederação	The southern confederacy formed after several states seceded.
425	colonialism	noun Study Field: Grade 8 history, civics, and social science word Word study: Suffix focus: -ism often names a belief, system, movement, or practice.	colonialismo	Colonialism redirected local resources toward the ruling empire.

Page 18: words 426–450

Vocabulary page 18
#	Word	Details	Meaning	Sample sentence
426	militarism	noun Study Field: Grade 8 history, civics, and social science word Word study: Suffix focus: -ism often names a belief, system, movement, or practice.	militarismo	European militarism increased tension before the war.
427	role	noun Study Field: Grade 8 history, civics, and social science word Word study: Base-form focus: role is the dictionary headword; compare its inflected or derived forms in context.	1. função 2. papel	A person's social role can change between home, school, and work.
428	socialization	noun Study Field: Grade 8 history, civics, and social science word Word study: Suffix focus: -ization forms a noun for a process of making or becoming.	1. socialização 2. sociabilização	Family and peers both influence socialization.
429	birth-rate	noun Study Field: Grade 8 history, civics, and social science word Word study: Term structure: birth + rate. Study the complete expression as one field-specific unit.	taxa de natalidade	Improved education and health access can affect a country's birth-rate.
430	death-rate	noun Study Field: Grade 8 history, civics, and social science word Word study: Term structure: death + rate. Study the complete expression as one field-specific unit.	taxa de mortalidade	A clean-water program lowered the community's death-rate from disease.
431	fertility-rate	noun Study Field: Grade 8 history, civics, and social science word Word study: Term structure: fertility + rate. Study the complete expression as one field-specific unit.	taxa de fertilidade	Demographers use the fertility-rate to project future population change.
432	life-expectancy	noun Study Field: Grade 8 history, civics, and social science word Word study: Term structure: life + expectancy. Study the complete expression as one field-specific unit.	esperança de vida	Vaccination and sanitation helped increase life-expectancy.
433	ethnocentrism	noun Study Field: Grade 8 history, civics, and social science word Word study: Suffix focus: -ism often names a belief, system, movement, or practice.	etnocentrismo	Ethnocentrism can cause people to misunderstand unfamiliar customs.
434	cultural-relativism	noun Study Field: Grade 8 history, civics, and social science word Word study: Term structure: cultural + relativism. Study the complete expression as one field-specific unit.	relativismo cultural	Cultural-relativism asks researchers to understand a ritual before judging it.
435	bureaucracy	noun Study Field: Grade 8 history, civics, and social science word Word study: Root and suffix focus: -cracy relates to rule or a system of government.	burocracia	The agency's bureaucracy requires applications to pass through several departments.
436	public-policy	noun Study Field: Grade 8 history, civics, and social science word Word study: Term structure: public + policy. Study the complete expression as one field-specific unit.	política pública	The city changed public-policy to reduce lead in drinking water.
437	lobbyist	noun Study Field: Grade 8 history, civics, and social science word Word study: Suffix focus: -ist often names a person associated with a field, belief, or practice.	lobista	The environmental lobbyist urged lawmakers to protect the wetland.
438	interest-group	noun Study Field: Grade 8 history, civics, and social science word Word study: Term structure: interest + group. Study the complete expression as one field-specific unit.	grupo de interesse	A consumer interest-group supported stronger product-safety rules.
439	political-party	noun Study Field: Grade 8 history, civics, and social science word Word study: Term structure: political + party. Study the complete expression as one field-specific unit.	partido político	The political-party published its priorities before the election.
440	platform	noun Study Field: Grade 8 history, civics, and social science word Word study: Base-form focus: platform is the dictionary headword; compare its inflected or derived forms in context.	plataforma	The candidate's platform includes proposals on housing and transportation.
441	moderate	noun Study Field: Grade 8 history, civics, and social science word Word study: Base-form focus: moderate is the dictionary headword; compare its inflected or derived forms in context.	moderado	The moderate sought a compromise acceptable to both sides.
442	radical	noun Study Field: Grade 8 history, civics, and social science word Word study: Base-form focus: radical is the dictionary headword; compare its inflected or derived forms in context.	radical	The radical argued that reform was insufficient and demanded a new system.
443	statute	noun Study Field: Grade 8 history, civics, and social science word Word study: Base-form focus: statute is the dictionary headword; compare its inflected or derived forms in context.	estatuo	The statute requires factories to report hazardous spills.
444	plaintiff	noun Study Field: Grade 8 history, civics, and social science word Word study: Base-form focus: plaintiff is the dictionary headword; compare its inflected or derived forms in context.	1. querelante 2. requerente 3. acusação	The plaintiff sought payment for damage to her property.
445	defendant	noun Study Field: Grade 8 history, civics, and social science word Word study: Base-form focus: defendant is the dictionary headword; compare its inflected or derived forms in context.	1. réu 2. ré 3. acusado	The defendant entered a plea at the hearing.
446	prosecution	noun Study Field: Grade 8 history, civics, and social science word Word study: Suffix focus: -tion commonly forms a noun naming an action, process, or result.	caçada	The prosecution introduced evidence connecting the suspect to the theft.
447	defense	noun Study Field: Grade 8 history, civics, and social science word Word study: Base-form focus: defense is the dictionary headword; compare its inflected or derived forms in context.	defesa	The defense questioned whether the witness could see clearly.
448	jury	noun Study Field: Grade 8 history, civics, and social science word Word study: Base-form focus: jury is the dictionary headword; compare its inflected or derived forms in context.	júri	The jury examined the evidence before reaching a verdict.
449	subpoena	noun Study Field: Grade 8 history, civics, and social science word Word study: Base-form focus: subpoena is the dictionary headword; compare its inflected or derived forms in context.	1. citação 2. intimação	The court issued a subpoena for the missing financial records.
450	civic-duty	noun Study Field: Grade 8 history, civics, and social science word Word study: Term structure: civic + duty. Study the complete expression as one field-specific unit.	dever cívico	Serving on a jury is a civic-duty.

Page 19: words 451–475

Vocabulary page 19
#	Word	Details	Meaning	Sample sentence
451	common-good	noun Study Field: Grade 8 history, civics, and social science word Word study: Term structure: common + good. Study the complete expression as one field-specific unit.	bem comum	The council argued that clean public parks serve the common-good.
452	rule-of-law	noun Study Field: Grade 8 history, civics, and social science word Word study: Term structure: rule + of + law. Study the complete expression as one field-specific unit.	estado de direito	An independent court helps protect the rule-of-law.
453	natural-rights	noun Study Field: Grade 8 history, civics, and social science word Word study: Term structure: natural + rights. Study the complete expression as one field-specific unit.	direitos naturais	Enlightenment thinkers described life and liberty as natural-rights.
454	popular-sovereignty	noun Study Field: Grade 8 history, civics, and social science word Word study: Term structure: popular + sovereignty. Study the complete expression as one field-specific unit.	soberania popular	Elections are one way citizens exercise popular-sovereignty.
455	limited-government	noun Study Field: Grade 8 history, civics, and social science word Word study: Term structure: limited + government. Study the complete expression as one field-specific unit.	governo limitado	A bill of rights supports limited-government by protecting individual freedoms.
456	representative-government	noun Study Field: Grade 8 history, civics, and social science word Word study: Term structure: representative + government. Study the complete expression as one field-specific unit.	governo representativo	In a representative-government, citizens hold elected officials accountable.
457	direct-democracy	noun Study Field: Grade 8 history, civics, and social science word Word study: Term structure: direct + democracy. Study the complete expression as one field-specific unit.	democracia direta	A local referendum is an example of direct-democracy.
458	constitutional-monarchy	noun Study Field: Grade 8 history, civics, and social science word Word study: Term structure: constitutional + monarchy. Study the complete expression as one field-specific unit.	monarquia constitucional	In a constitutional-monarchy, the monarch does not govern with unlimited authority.
459	autocracy	noun Study Field: Grade 8 history, civics, and social science word Word study: Root and suffix focus: -cracy relates to rule or a system of government.	autocracia	The autocracy censored newspapers that criticized the ruler.
460	charter	noun Study Field: Grade 8 history, civics, and social science word Word study: Base-form focus: charter is the dictionary headword; compare its inflected or derived forms in context.	1. carta 2. alvará	The royal charter authorized the colony's government.
461	covenant	noun Study Field: Grade 8 history, civics, and social science word Word study: Base-form focus: covenant is the dictionary headword; compare its inflected or derived forms in context.	1. pacto 2. contrato 3. promessa	The communities signed a covenant promising to share water during droughts.
462	commonwealth	noun Study Field: Grade 8 history, civics, and social science word Word study: Base-form focus: commonwealth is the dictionary headword; compare its inflected or derived forms in context.	comunidade	The constitution described the state as a commonwealth.
463	confederation	noun Study Field: Grade 8 history, civics, and social science word Word study: Suffix focus: -ation commonly forms a noun naming an action, process, or result.	confederação	The early confederation struggled to collect national revenue.
464	federation	noun Study Field: Grade 8 history, civics, and social science word Word study: Suffix focus: -ation commonly forms a noun naming an action, process, or result.	federação	The provinces joined a federation while retaining local legislatures.
465	bicameral	adjective Study Field: Grade 8 history, civics, and social science word Word study: Base-form focus: bicameral is the dictionary headword; compare its inflected or derived forms in context.	1. bicameral 2. bicamaral	The national parliament is bicameral, with an upper and a lower house.
466	unicameral	adjective Study Field: Grade 8 history, civics, and social science word Word study: Base-form focus: unicameral is the dictionary headword; compare its inflected or derived forms in context.	1. unicameral 2. unicamaral	The region uses a unicameral legislature.
467	veto	noun Study Field: Grade 8 history, civics, and social science word Word study: Base-form focus: veto is the dictionary headword; compare its inflected or derived forms in context.	veto	The governor used a veto to block the bill.
468	override	verb Study Field: Grade 8 history, civics, and social science word Word study: Base-form focus: override is the dictionary headword; compare its inflected or derived forms in context.	1. anular 2. contornar 3. sobrepor	A sufficient legislative majority can override the veto.
469	impeachment	noun Study Field: Grade 8 history, civics, and social science word Word study: Suffix focus: -ment commonly forms a noun for an action, process, state, or result.	1. destituição 2. impugnação 3. impeachment	The constitution assigns the lower chamber responsibility for impeachment.
470	agency	noun Study Field: Grade 8 history, civics, and social science word Word study: Base-form focus: agency is the dictionary headword; compare its inflected or derived forms in context.	agência	The environmental agency monitors air pollution.
471	department	noun Study Field: Grade 8 history, civics, and social science word Word study: Suffix focus: -ment commonly forms a noun for an action, process, state, or result.	1. departamento 2. setor	The health department opened a vaccination clinic.
472	administration	noun Study Field: Grade 8 history, civics, and social science word Word study: Suffix focus: -ation commonly forms a noun naming an action, process, or result.	administração	The administration proposed a revised national budget.
473	Electoral College	proper noun Study Field: Grade 8 history, civics, and social science word Word study: Term structure: Electoral + College. Study the complete expression as one field-specific unit.	Colégio eleitoral	Each state receives a number of votes in the Electoral College.
474	primary-election	noun Study Field: Grade 8 history, civics, and social science word Word study: Term structure: primary + election. Study the complete expression as one field-specific unit.	eleições primárias	Voters selected the nominee during the primary-election.
475	general-election	noun Study Field: Grade 8 history, civics, and social science word Word study: Term structure: general + election. Study the complete expression as one field-specific unit.	eleições gerais	The winning candidate took office after the general-election.

Designing a Fair Charter

Reading practice for pages 19–20. Five relevant words are highlighted.

English reading

Students draft a town charter based on popular-sovereignty, so authority begins with the people. The charter protects natural-rights and establishes limited-government. It also supports the rule-of-law, requiring leaders and citizens alike to follow rules created for the common-good.

Portuguese translation

A reviewed translation is not available for this passage yet.

Reading comprehension

1. Where does authority begin?

Under popular sovereignty, authority begins with the people.

2. What limits the leaders?

Limited government and the rule of law limit leaders.

3. What should the rules promote?

The rules should promote the common good.

Page 20: words 476–500

Vocabulary page 20
#	Word	Details	Meaning	Sample sentence
476	caucus	noun Study Field: Grade 8 history, civics, and social science word Word study: Base-form focus: caucus is the dictionary headword; compare its inflected or derived forms in context.	reunião/convenção (de partido)	Local party members debated their priorities at the caucus.
477	precinct	noun Study Field: Grade 8 history, civics, and social science word Word study: Base-form focus: precinct is the dictionary headword; compare its inflected or derived forms in context.	escritório	The school gym served as the polling place for our precinct.
478	apportionment	noun Study Field: Grade 8 history, civics, and social science word Word study: Suffix focus: -ment commonly forms a noun for an action, process, state, or result.	repartição	The census provides population totals used for apportionment.
479	redistricting	noun Study Field: Grade 8 history, civics, and social science word Word study: Base-form focus: redistricting is the dictionary headword; compare its inflected or derived forms in context.	redistritamento	Population shifts led the state to begin redistricting.
480	gerrymandering	noun Study Field: Grade 8 history, civics, and social science word Word study: Base-form focus: gerrymandering is the dictionary headword; compare its inflected or derived forms in context.	manipulação dos distritos eleitorais	The oddly shaped map raised concerns about gerrymandering.
481	Columbian Exchange	proper noun Study Field: Grade 8 history, civics, and social science word Word study: Term structure: Columbian + Exchange. Study the complete expression as one field-specific unit.	1. Intercâmbio Colombiano 2. Troca Colombiana	The Columbian Exchange brought potatoes to Europe and horses to the Americas.
482	encomienda	noun Study Field: Grade 8 history, civics, and social science word Word study: Base-form focus: encomienda is the dictionary headword; compare its inflected or derived forms in context.	encomenda	The encomienda exploited Indigenous communities for colonial production.
483	indentured-servitude	noun Study Field: Grade 8 history, civics, and social science word Word study: Term structure: indentured + servitude. Study the complete expression as one field-specific unit.	servidão contratada	Through indentured-servitude, some migrants exchanged years of labor for transportation.
484	Middle Passage	proper noun Study Field: Grade 8 history, civics, and social science word Word study: Term structure: Middle + Passage. Study the complete expression as one field-specific unit.	Passagem do Meio	Captive people endured brutal conditions during the Middle Passage.
485	abolitionist	noun Study Field: Grade 8 history, civics, and social science word Word study: Suffix focus: -ist often names a person associated with a field, belief, or practice.	abolicionista	The abolitionist published eyewitness accounts to build opposition to slavery.
486	Underground Railroad	proper noun Study Field: Grade 8 history, civics, and social science word Word study: Term structure: Underground + Railroad. Study the complete expression as one field-specific unit.	Ferrovia Subterrânea	Conductors in the Underground Railroad provided shelter and directions.
487	nullification	noun Study Field: Grade 8 history, civics, and social science word Word study: Suffix focus: -ation commonly forms a noun naming an action, process, or result.	anulação	The nullification crisis tested the balance between state and federal power.
488	states' rights	noun Study Field: Grade 8 history, civics, and social science word Word study: Term structure: states' + rights. Study the complete expression as one field-specific unit.	direitos dos estados	The debate over states' rights shaped arguments about federal authority.
489	cotton-gin	noun Study Field: Grade 8 history, civics, and social science word Word study: Term structure: cotton + gin. Study the complete expression as one field-specific unit.	descaroçador de algodão	The cotton-gin increased the speed of cotton processing.
490	plantation	noun Study Field: Grade 8 history, civics, and social science word Word study: Suffix focus: -ation commonly forms a noun naming an action, process, or result.	1. plantação 2. fazenda	The plantation produced sugar for overseas markets.
491	sharecropping	noun Study Field: Grade 8 history, civics, and social science word Word study: Base-form focus: sharecropping is the dictionary headword; compare its inflected or derived forms in context.	parceria rural	Sharecropping often trapped families in cycles of debt.
492	tenant-farming	noun Study Field: Grade 8 history, civics, and social science word Word study: Term structure: tenant + farming. Study the complete expression as one field-specific unit.	agricultura arrendatária	Under tenant-farming, the family paid cash rent for its fields.
493	Jim Crow	proper noun Study Field: Grade 8 history, civics, and social science word Word study: Term structure: Jim + Crow. Study the complete expression as one field-specific unit.	Jim Corvo	Jim Crow denied Black citizens equal access to public facilities.
494	Black Codes	proper noun Study Field: Grade 8 history, civics, and social science word Word study: Term structure: Black + Codes. Study the complete expression as one field-specific unit.	Códigos Negros	Black Codes limited movement, work, and civil rights.
495	Freedmen's Bureau	proper noun Study Field: Grade 8 history, civics, and social science word Word study: Term structure: Freedmen's + Bureau. Study the complete expression as one field-specific unit.	Bureau dos Libertos	The Freedmen's Bureau supported schools and helped negotiate labor contracts.
496	transcontinental-railroad	noun Study Field: Grade 8 history, civics, and social science word Word study: Term structure: transcontinental + railroad. Study the complete expression as one field-specific unit.	ferrovia transcontinental	The transcontinental-railroad reduced travel time across the United States.
497	Gold Rush	proper noun Study Field: Grade 8 history, civics, and social science word Word study: Term structure: Gold + Rush. Study the complete expression as one field-specific unit.	febre de ouro	The Gold Rush transformed small settlements into crowded towns.
498	manorialism	noun Study Field: Grade 8 history, civics, and social science word Word study: Suffix focus: -ism often names a belief, system, movement, or practice.	senhorialismo	Under manorialism, the manor produced much of what its residents used.
499	absolutism	noun Study Field: Grade 8 history, civics, and social science word Word study: Suffix focus: -ism often names a belief, system, movement, or practice.	absolutismo	Royal absolutism weakened representative institutions.
500	divine right	noun Study Field: Grade 8 history, civics, and social science word Word study: Term structure: divine + right. Study the complete expression as one field-specific unit.	direito divino	Supporters of divine right argued that subjects should not challenge the king.

Sources and curriculum references

These references guide selection and calibration. Definitions, sample sentences, readings, questions, and teaching notes are independently written and reviewed.