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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| # | Word | Details | Meaning | Sample sentence |
|---|---|---|---|---|
| 201 | kinetic-energy | noun StudyField: Grade 8 science and technology word Word study: Term structure: kinetic + energy. Study the complete expression as one field-specific unit. | 动能 | The rolling ball gains kinetic-energy as it speeds down the ramp. |
| 202 | protein-synthesis | noun StudyField: Grade 8 science and technology word Word study: Term structure: protein + synthesis. Study the complete expression as one field-specific unit. | 蛋白质合成 | During protein-synthesis, ribosomes join amino acids in a specified order. |
| 203 | thermal-energy | noun StudyField: Grade 8 science and technology word Word study: Term structure: thermal + energy. Study the complete expression as one field-specific unit. | 热能 | Heating the water increases its thermal-energy. |
| 204 | mechanical-energy | noun StudyField: Grade 8 science and technology word Word study: Term structure: mechanical + energy. Study the complete expression as one field-specific unit. | 机械能 | At the top of its swing, the pendulum's mechanical-energy is mostly stored. |
| 205 | chemical-energy | noun StudyField: Grade 8 science and technology word Word study: Term structure: chemical + energy. Study the complete expression as one field-specific unit. | 化学能 | A battery converts chemical-energy into electrical energy. |
| 206 | electrical-energy | noun StudyField: Grade 8 science and technology word Word study: Term structure: electrical + energy. Study the complete expression as one field-specific unit. | 电能 | The solar panels supply electrical-energy to the building. |
| 207 | electromagnetic | adjective StudyField: Grade 8 science and technology word Word study: Base-form focus: electromagnetic is the dictionary headword; compare its inflected or derived forms in context. | 电磁 | Visible light is one type of electromagnetic radiation. |
| 208 | diffraction | noun StudyField: Grade 8 science and technology word Word study: Suffix focus: -tion commonly forms a noun naming an action, process, or result. | 1. 衍射 2. 繞射 | Diffraction causes water waves to fan out after passing through a narrow gap. |
| 209 | interference | noun StudyField: Grade 8 science and technology word Word study: Suffix focus: -ence commonly forms a noun naming an action, quality, or state. | 干涉 | Interference creates alternating bright and dark bands on the screen. |
| 210 | resonance | noun StudyField: Grade 8 science and technology word Word study: Suffix focus: -ance commonly forms a noun naming an action, quality, or state. | 共振 | Resonance made the tuning fork vibrate more intensely. |
| 211 | photon | noun StudyField: Grade 8 science and technology word Word study: Base-form focus: photon is the dictionary headword; compare its inflected or derived forms in context. | 光子 | A photon of visible light can be absorbed by a plant pigment. |
| 212 | centripetal | adjective StudyField: Grade 8 science and technology word Word study: Base-form focus: centripetal is the dictionary headword; compare its inflected or derived forms in context. | 向心的 | Centripetal force keeps the ball moving in a circle on its string. |
| 213 | centrifugal | adjective StudyField: Grade 8 science and technology word Word study: Base-form focus: centrifugal is the dictionary headword; compare its inflected or derived forms in context. | 离心式 | Passengers sense a centrifugal effect when a car turns sharply. |
| 214 | torque | noun StudyField: 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. 力矩 2. 扭矩 | A longer wrench can produce more torque on a tight bolt. |
| 215 | conductivity | noun StudyField: Grade 8 science and technology word Word study: Suffix focus: -ity commonly forms a noun naming a quality, state, or condition. | 1. 傳導率 2. 电导率 | Copper's high conductivity makes it useful in electrical wiring. |
| 216 | series-circuit | noun StudyField: Grade 8 science and technology word Word study: Term structure: series + circuit. Study the complete expression as one field-specific unit. | 串联电路 | One broken bulb can interrupt an entire series-circuit. |
| 217 | parallel-circuit | noun StudyField: Grade 8 science and technology word Word study: Term structure: parallel + circuit. Study the complete expression as one field-specific unit. | 并联电路 | In a parallel-circuit, one lamp can stay lit when another fails. |
| 218 | ion | noun StudyField: 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. 離子 2. 离子 | A sodium atom becomes a positive ion after losing an electron. |
| 219 | proton | noun StudyField: 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. 質子 2. 质子 | The proton count determines which element an atom is. |
| 220 | neutron | noun StudyField: Grade 8 science and technology word Word study: Base-form focus: neutron is the dictionary headword; compare its inflected or derived forms in context. | 中子 | A neutron adds mass to an atom without adding electric charge. |
| 221 | electron | noun StudyField: 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. 電子 2. 电子 | An electron may move to a higher energy level after absorbing energy. |
| 222 | valence | noun StudyField: Grade 8 science and technology word Word study: Base-form focus: valence is the dictionary headword; compare its inflected or derived forms in context. | 1. 化合價 2. 价值 | Carbon's valence allows it to form four covalent bonds. |
| 223 | covalent | adjective StudyField: Grade 8 science and technology word Word study: Base-form focus: covalent is the dictionary headword; compare its inflected or derived forms in context. | 1. 共價的 2. 共價 | Two hydrogen atoms form a covalent bond by sharing electrons. |
| 224 | ionic | adjective StudyField: Grade 8 science and technology word Word study: Base-form focus: ionic is the dictionary headword; compare its inflected or derived forms in context. | 离子型 | Table salt is an ionic compound made from sodium and chloride ions. |
| 225 | acidity | noun StudyField: Grade 8 science and technology word Word study: Suffix focus: -ity commonly forms a noun naming a quality, state, or condition. | 1. 酸性 2. 酸度 | A pH test can compare the acidity of lemon juice and water. |
Vocabulary reading and practice
Page 9 vocabulary review
Review five selected words from page 9.
English reading
Reading passage is being prepared.
Simplified Chinese translation
A reviewed translation is not available for this passage yet.
Vocabulary quiz
Choose the dictionary equivalent for each of 5 selected words.
Vocabulary chart page
This page focuses on the word chart. Reading passages appear once in each three-page group, while cloze quizzes remain in the established enhanced range for this level.
Sources and curriculum references
These references guide selection and calibration. Definitions, sample sentences, readings, questions, and teaching notes are independently written and reviewed.
- Flocabulary: 8th Grade Vocabulary Word List
- GreatSchools / Hyde Park: Academic Vocabulary Words for 8th Graders
- Berkeley Unified School District: Grade Level Academic Vocabulary
- WikDict downloadable bilingual dictionaries
- Kaikki.org / Wiktextract machine-readable Wiktionary data
- Language-Learning-decks public flashcard datasets
- SBBIC English-to-Khmer Dictionary
- English–Khmer Dictionary Dataset (machine-generated Khmer fallback; human review required)
- PanLex meanings snapshot (direct CC0 gap candidates; human review required)
- Cambridge bilingual dictionaries (individual editorial sense checks)
- Collins English–Hindi Dictionary (individual editorial checks)
- Hindwi and Rekhta dictionaries (individual Hindi/Urdu checks)
- National Institute of Korean Language: Basic Korean Dictionary
- JMdict/EDRDG Japanese dictionary project
- CC-CEDICT Chinese dictionary project
- VDict Vietnamese Dictionary (individual editorial check)
- Google Translate (machine-assisted lesson-reading draft; fluent review required)
- Kuperman et al.: Age-of-acquisition ratings for 30,000 English words
- Glencoe/McGraw-Hill, Vocabulary Power: Grade 8, ISBN 0-07-826228-3 (bibliographic calibration only).