English Vocabulary · Grade 7 Live Review Preview
7th Grade Vocabulary Words
Seventh-grade readers are expected to move confidently among literary analysis, argument, research, science, mathematics, history, and civic discussion. This level develops precise Tier II and cross-curricular language while reinforcing context clues, word relationships, roots and affixes, multiple meanings, source evaluation, and evidence-based speaking and writing.
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 supplied Grade 7 workbook calibrated 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 | apparatus | noun StudyField: Grade 7 science and engineering word Word study: Base-form focus: apparatus is the dictionary headword; compare its inflected or derived forms in context. | 1. 장치(裝置) 2. 장치 3. 기구 | The filtration apparatus includes a funnel, paper, and collection flask. |
| 202 | control | noun StudyField: Grade 7 science and engineering word Word study: Base-form focus: control is the dictionary headword; compare its inflected or derived forms in context. | 1. 대조군 2. 대조 조건 | The untreated plant served as the control. |
| 203 | constant | noun StudyField: Grade 7 science and engineering word Word study: Base-form focus: constant is the dictionary headword; compare its inflected or derived forms in context. | 1. 통제 변인 2. 일정하게 유지하는 요인 | Water volume was a constant in every trial. |
| 204 | measurement | noun StudyField: Grade 7 science and engineering word Word study: Suffix focus: -ment commonly forms a noun for an action, process, state, or result. | 1. 측정값 2. 측정 | Record each measurement to the nearest millimeter. |
| 205 | accuracy | noun StudyField: Grade 7 science and engineering word Word study: Base-form focus: accuracy is the dictionary headword; compare its inflected or derived forms in context. | 정확도 | Calibration improved the thermometer's accuracy. |
| 206 | error | noun StudyField: Grade 7 science and engineering word Word study: Base-form focus: error is the dictionary headword; compare its inflected or derived forms in context. | 1. 실수(失手) 2. 에러 3. 오류(誤謬) | Reading the scale from an angle can introduce error. |
| 207 | hazard | noun StudyField: Grade 7 science and engineering word Word study: Base-form focus: hazard is the dictionary headword; compare its inflected or derived forms in context. | 1. 위험 요소 2. 위해 요인 | Loose wires create an electrical hazard. |
| 208 | toxic | adjective StudyField: Grade 7 science and engineering word Word study: Base-form focus: toxic is the dictionary headword; compare its inflected or derived forms in context. | 1. 유독한 2. 독성의 | The label warns that the liquid is toxic if swallowed. |
| 209 | corrosive | adjective StudyField: Grade 7 science and engineering word Word study: Suffix focus: -ive commonly forms an adjective meaning having a quality or tendency. | 1. 부식성의 2. 부식시키는 | Technicians wear gloves when handling the corrosive acid. |
| 210 | flammable | adjective StudyField: Grade 7 science and engineering word Word study: Suffix focus: -able means capable of, suitable for, or worthy of an action. | 가연성 | Store the flammable solvent away from sparks. |
| 211 | microscope | noun StudyField: Grade 7 science and engineering word Word study: Prefix focus: micro- means small. | 1. 현미경(顯微鏡) 2. 현미경 | The microscope revealed cell walls in the onion tissue. |
| 212 | specimen | noun StudyField: Grade 7 science and engineering word Word study: Base-form focus: specimen is the dictionary headword; compare its inflected or derived forms in context. | 1. 표본 2. 시료 | The rock specimen contains visible quartz crystals. |
| 213 | dissection | noun StudyField: Grade 7 science and engineering word Word study: Suffix focus: -tion commonly forms a noun naming an action, process, or result. | 1. 해부(解剖) 2. 해부 | The flower dissection revealed its reproductive parts. |
| 214 | model | noun StudyField: Grade 7 science and engineering word Word study: Base-form focus: model is the dictionary headword; compare its inflected or derived forms in context. | 1. 모형 2. 모델 | The globe is a model of Earth, not an exact copy. |
| 215 | simulation | noun StudyField: Grade 7 science and engineering word Word study: Suffix focus: -ation commonly forms a noun naming an action, process, or result. | 1. 시뮬레이션 2. 모의 | The computer simulation predicts how traffic may flow. |
| 216 | engineering | noun StudyField: Grade 7 science and engineering word Word study: Base-form focus: engineering is the dictionary headword; compare its inflected or derived forms in context. | 1. 공학(工學) 2. 엔지니어링 3. 이공 | Bridge engineering balances strength, cost, and safety. |
| 217 | optimization | noun StudyField: Grade 7 science and engineering word Word study: Suffix focus: -ization forms a noun for a process of making or becoming. | 최적화 | Route optimization reduced both travel time and fuel use. |
| 218 | machine | noun StudyField: Grade 7 science and engineering word Word study: Base-form focus: machine is the dictionary headword; compare its inflected or derived forms in context. | 1. 기계(機械) 2. 기계(器械) 3. 머신 | The simple machine lets one person lift the heavy crate. |
| 219 | lever | noun StudyField: Grade 7 science and engineering word Word study: Base-form focus: lever is the dictionary headword; compare its inflected or derived forms in context. | 1. 지레 2. 레버 3. 레바 | The crowbar acts as a lever when lifting the lid. |
| 220 | pulley | noun StudyField: Grade 7 science and engineering word Word study: Base-form focus: pulley is the dictionary headword; compare its inflected or derived forms in context. | 도르래 | A pulley helped raise the flag. |
| 221 | gear | noun StudyField: Grade 7 science and engineering word Word study: Base-form focus: gear is the dictionary headword; compare its inflected or derived forms in context. | 1. 기어 2. 톱니바퀴 | The smaller gear turns faster than the larger gear. |
| 222 | axle | noun StudyField: Grade 7 science and engineering word Word study: Base-form focus: axle is the dictionary headword; compare its inflected or derived forms in context. | 차축(車軸) | The bicycle wheel rotates around its axle. |
| 223 | wedge | noun StudyField: Grade 7 science and engineering word Word study: Base-form focus: wedge is the dictionary headword; compare its inflected or derived forms in context. | 쐐기 | The blade is a wedge that pushes material apart. |
| 224 | efficiency | noun StudyField: Grade 7 science and engineering word Word study: Base-form focus: efficiency is the dictionary headword; compare its inflected or derived forms in context. | 1. 효율 2. 능률 | Lubrication increased the motor's efficiency. |
| 225 | code | noun StudyField: Grade 7 science and engineering word Word study: Base-form focus: code is the dictionary headword; compare its inflected or derived forms in context. | 1. 코드 2. 프로그램 코드 | The code tells the sensor when to activate the alarm. |
Vocabulary reading and practice
Page 9 vocabulary review
Review five selected words from page 9.
English reading
Reading passage is being prepared.
Korean 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.
- 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 7, ISBN 0-07-826226-7 (bibliographic calibration only).