KS3 CAIE Chemistry: Vocabulary Quick Memory Guide | KS3 CAIE 化学：词汇术语速记指南

📚 KS3 CAIE Chemistry: Vocabulary Quick Memory Guide | KS3 CAIE 化学：词汇术语速记指南

Mastering chemistry starts with the language of the subject. This guide offers proven memory strategies to help KS3 CAIE students learn and recall essential chemistry terms efficiently, building a strong foundation for future studies.

掌握化学始于掌握学科语言。本指南提供行之有效的记忆策略，帮助 KS3 CAIE 学生高效学习和回忆核心化学术语，为未来学习打下坚实基础。

1. Building Blocks of Memory: Word Origins and Roots | 记忆基石：词源与词根

Many chemistry terms come from Greek or Latin roots. Once you recognise common roots, you can decode unfamiliar words. For example, ‘hydro’ means water, ‘pyro’ means fire, and ‘phos’ means light. The word ‘hydrogen’ literally means ‘water-former’ because burning hydrogen produces water.

许多化学术语源自希腊语或拉丁语词根。一旦你认出常见词根，就能破解不熟悉的单词。例如，“hydro”表示水，“pyro”表示火，“phos”表示光。“hydrogen”（氢）字面意思是“产生水的”，因为氢气燃烧生成水。

• therm – heat → thermometer, exothermic
• electro – electricity, amber → electrolysis, electrode
• atm – vapour → atmosphere, atom (indivisible)

英文列表对应中文：

• therm —— 热 → 温度计、放热反应
• electro —— 电，琥珀 → 电解、电极
• atm —— 蒸汽 → 大气层、原子（不可分割）

Make a personal glossary with the root, its meaning, and example words. This approach turns vocabulary learning into a puzzle-solving game.

制作个人词汇表，列明词根、含义和例词。这种方法把词汇学习变成解谜游戏。

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2. Element Symbols and Names: Memory by Association | 元素符号与名称的联想记忆

Learning the first 20 elements and their symbols is essential. Create vivid associations between the symbol and the name. For instance, ‘Na’ for sodium comes from the Latin natrium. Picture a salty (sodium) nation (natrium) waving a flag with ‘Na’ written on it.

记前20种元素及其符号是基础。在符号和名称之间建立生动的联想。例如，钠的符号 Na 来自拉丁语 natrium。想象一个含盐（sodium）的国家（nation）挥舞着写有“Na”的旗帜。

Element | 元素	Symbol | 符号	Memory Hook | 记忆钩子
Potassium	K	Kalium – think of a banana (rich in potassium) wearing a crown (K for king)
Iron	Fe	Ferrum – imagine a ferocious iron robot named Ferrum
Silver	Ag	Argentum – an Argentine football trophy made of shiny silver

中文对应：

元素	符号	记忆钩子
钾	K	Kalium —— 想象一根富含钾的香蕉戴着王冠（K 代表国王）
铁	Fe	Ferrum —— 想象一个凶猛的铁机器人名叫 Ferrum
银	Ag	Argentum —— 一个用闪亮白银制成的阿根廷足球奖杯

Regular practice with flashcards or interactive quizzes will cement these associations.

定期用抽认卡或互动测验练习，可巩固这些联想。

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3. Prefixes and Suffixes: Decoding Chemical Language | 前缀与后缀：破解化学语言

Prefixes and suffixes act as shortcuts to meaning. In KS3, you encounter terms like di-, tri-, mono- for numbers of atoms, and -ide, -ate, -ite for compounds. Understanding these patterns reduces memorisation load significantly.

前缀和后缀是通往含义的捷径。在 KS3 阶段，你会遇到 di-（二）、tri-（三）、mono-（单）等表示原子数量的词缀，以及 -ide、-ate、-ite 等表示化合物的后缀。理解这些规律能大幅减轻记忆负担。

For example, carbon monoxide has one oxygen atom per carbon, while carbon dioxide has two. The suffix -ide usually indicates a binary compound (sodium chloride), while -ate and -ite indicate the presence of oxygen and different amounts of it (sulfate vs sulfite).

例如，一氧化碳（carbon monoxide）每个碳原子对应一个氧原子，而二氧化碳（carbon dioxide）对应两个。后缀 -ide 通常表示二元化合物（氯化钠），-ate 和 -ite 则表示含氧且氧含量不同（硫酸盐与亚硫酸盐）。

Create a chart of common prefixes with their numerical values: 1 = mono-, 2 = di-, 3 = tri-, 4 = tetra-, 5 = penta-. For suffixes, remember: ‘I ate something ate for more oxygen, and the ite bit less.’ (sulfate has more oxygen than sulfite).

制作常见前缀及其数值的图表：1 = mono-，2 = di-，3 = tri-，4 = tetra-，5 = penta-。对于后缀，记住：“我 ate（吃）了含更多氧的 ate，而 ite 则少一些。” （硫酸根比亚硫酸根含氧多）。

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4. Naming Compounds: Patterns and Rules | 化合物命名：规律与规则

Naming simple compounds follows systematic rules. Start by identifying the metal and non-metal. The metal name comes first, then the non-metal name ends with -ide. For example, magnesium + oxygen → magnesium oxide, lithium + fluorine → lithium fluoride.

简单化合物的命名遵循系统规则。先确定金属和非金属。金属名称在前，非金属名称以 -ide 结尾。例如，镁 + 氧 → 氧化镁，锂 + 氟 → 氟化锂。

If there are two non-metals, use prefixes to show the number of atoms: nitrogen dioxide (NO₂), sulfur hexafluoride (SF₆). Practice by breaking the name into parts: di–nitrogen tetra–oxide means two nitrogen atoms and four oxygen atoms.

如果是两种非金属，用前缀表示原子数：二氧化氮（NO₂）、六氟化硫（SF₆）。通过拆分名称来练习：di–nitrogen tetra–oxide 表示两个氮原子和四个氧原子。

A handy mnemonic: ‘Metal non-metal, swap the ending; non-metals only, numbers we are sending.’ This rhyme helps recall when to use prefixes.

一条顺口溜：“金属非金属，后缀换一换；全是非金属，数字出来站。” 这有助于记住何时使用前缀。

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5. Reaction Types: Distinguishing Key Terms | 反应类型：辨别关键术语

Students often confuse combustion, oxidation, thermal decomposition, and neutralisation. Focus on one defining feature for each term. Combustion always involves oxygen and produces heat; oxidation is the gain of oxygen (or loss of electrons later); thermal decomposition uses heat to break a compound down; neutralisation is the reaction between an acid and a base forming salt and water.

学生常混淆燃烧、氧化、热分解和中和。专注每个术语的一个定义性特征。燃烧总涉及氧气并产生热量；氧化是获得氧（以后是失去电子）；热分解用热将化合物分解；中和是酸与碱反应生成盐和水。

Use word pictures: combustion → ‘com-bust’ sounds like ‘combine and burn’; oxidation → adding oxygen; thermal decomposition → ‘thermo’ heat + ‘de-composition’ breaking apart; neutralisation → making a solution neutral.

利用单词画面：combustion（燃烧）—— “com-bust” 听起来像“混合并燃烧”；oxidation（氧化）—— 加氧；thermal decomposition（热分解）—— “thermo” 热 + “分解” 拆开；neutralisation（中和）—— 使溶液变为中性。

Write summary equations in words, not just symbols: e.g., Neutralisation → acid + alkali → salt + water. Repeating these word equations aloud strengthens verbal memory.

用文字写总结方程式，而不只是符号：例如，中和 → 酸 + 碱 → 盐 + 水。大声重复这些文字方程式可加强语言记忆。

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6. Acids and Alkalis: pH and Beyond | 酸与碱：pH 值及其引申

Key terms: acid, alkali, base, pH scale, indicator, neutral. Acids have pH less than 7 and turn blue litmus red. Alkalis (soluble bases) have pH greater than 7 and turn red litmus blue. A base is a substance that neutralises acids, but not all bases are alkalis.

关键术语：酸、碱（alkali）、碱（base）、pH 标度、指示剂、中性。酸的 pH 值小于 7，使蓝色石蕊试纸变红。碱（可溶性碱）的 pH 值大于 7，使红色石蕊试纸变蓝。base 是中和酸的物质，但并非所有 base 都是 alkali。

Remember the difference: An alkali dissolves in water to produce OH⁻ ions; a base like copper oxide does not dissolve but still reacts with acids. Think ‘Alkali = Aqueous base’.

记住区别：alkali 溶于水产生 OH⁻ 离子；像氧化铜这样的 base 不溶于水但仍能与酸反应。记作 “Alkali = Aqueous base（水溶碱）”。

Mnemonic for pH scale: ‘Power of Hydrogen’ (pH). For indicators, link universal indicator colours to numbers: 1-3 red, 4-6 orange/yellow, 7 green, 8-11 blue, 12-14 purple. Imagine a rainbow climbing from acidic to alkaline.

pH 的记忆法：“氢的力量”（Power of Hydrogen）。指示剂方面，将通用指示剂颜色与数字关联：1-3 红，4-6 橙/黄，7 绿，8-11 蓝，12-14 紫。想象一道彩虹从酸性攀升至碱性。

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7. States of Matter and Changes: Vocabulary for Phases | 物质状态与变化：物相词汇

The three states are solid, liquid, and gas. Changes between them are named: melting (solid → liquid), freezing (liquid → solid), boiling/evaporation (liquid → gas), condensation (gas → liquid). Sublimation is solid directly to gas, and deposition is the reverse.

三种状态为固态、液态、气态。它们之间的变化命名为：熔化（固→液），凝固（液→固），沸腾/蒸发（液→气），冷凝（气→液）。升华是固体直接变气体，凝华是相反过程。

Visualise the particles: solid particles are tightly packed and vibrate; liquid particles are close but can slide; gas particles are far apart and move quickly. Link each state change with an action: melting ice cream, water vapour on a mirror, dry ice fog (sublimation).

将粒子可视化：固体粒子紧密堆积并振动；液体粒子靠近但可滑动；气体粒子相距很远且快速移动。将每种状态变化与一个动作关联：融化的冰淇淋、镜子上的水蒸气、干冰烟雾（升华）。

Use the phrase ‘Mr FEB SCD’ as an acronym for the changes: Melting, Freezing, Evaporation, Boiling, Sublimation, Condensation, Deposition. Silly but effective.

用短语 “Mr FEB SCD” 作为变化的首字母缩写：熔化（Melting）、凝固（Freezing）、蒸发（Evaporation）、沸腾（Boiling）、升华（Sublimation）、冷凝（Condensation）、凝华（Deposition）。可笑但有效。

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8. Laboratory Equipment: Names and Functions | 实验器材：名称与功能

Knowing the correct names of apparatus and what they do is vital for practical work and exam questions. Common items: beaker (container for liquids), conical flask (swirling without spillage), measuring cylinder (precise volume), Bunsen burner (heat source), tripod and gauze (support), test tube, funnel, filter paper, evaporating dish.

了解器材的正确名称及功能对实验工作和考试题目至关重要。常见物品：烧杯（盛液体容器），锥形瓶（可摇晃不溅出），量筒（精确体积），本生灯（热源），三脚架和石棉网（支撑），试管，漏斗，滤纸，蒸发皿。

Draw and label each piece of equipment in your notebook. Write a short phrase describing its use, e.g., ‘A funnel directs liquid and holds filter paper for filtration.’

在笔记本上画出并标记每件器材。写一句简短描述其用途的话，如“漏斗引导液体并放置滤纸进行过滤。”

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9. Safety and Hazard Terms | 安全与危险术语

Understand hazard symbols and associated words: flammable, corrosive, toxic, irritant, oxidising, environmental hazard. Each symbol has a distinctive shape and colour to aid visual memory.

理解危险符号及相关词汇：易燃、腐蚀性、有毒、刺激性、氧化性、环境危害。每个符号有独特的形状和颜色，有助于视觉记忆。

A corrosive substance eats away materials and skin; imagine a picture of a hand and a surface being dissolved. Flammable means catches fire easily, often shown as a flame. Use the phrase ‘Risk is the chance, hazard is the source.’

腐蚀性物质会侵蚀材料和皮肤；想象一幅手和表面被溶解的图画。易燃意味着容易着火，通常用火焰表示。用短语“风险是概率，危险是源头”来区分 risk 和 hazard。

Create a story linking the hazard symbol to a real accident scenario to make the term stick emotionally.

编一个故事将危险符号与真实事故情景联系起来，让术语带有情感记忆。

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10. Separation Techniques: Precise Terminology | 分离技术：精确术语

Terms like filtration, crystallisation, distillation, chromatography, and evaporation must be used accurately. Filtration separates insoluble solids from liquids; crystallisation obtains a soluble solid from a solution; distillation separates a solvent from a solution or separates liquids with different boiling points; chromatography separates dissolved substances by difference in solubility.

需准确使用的术语如过滤、结晶、蒸馏、色谱法和蒸发。过滤将不溶性固体从液体中分离；结晶从溶液中获取可溶性固体；蒸馏将溶剂从溶液中分离或分离沸点不同的液体；色谱法通过溶解度的差异分离溶解的物质。

For each technique, memorise a simple labelled diagram and a one-sentence principle. For chromatography: ‘The more soluble a substance, the further it travels up the paper.’

对于每种技术，记住一张简单的标注图和一句原理。色谱法：“物质越易溶解，在纸上移动得越远。”

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11. Confusing Word Pairs: Spot the Difference | 易混淆词对：分清差异

Chemistry has many words that sound similar but have different meanings. Examples: atom vs molecule, element vs compound, mixture vs pure substance, ion vs isotope (though isotopes are KS4, the concept might appear in extension). Focus on clear definitions and use contrast tables.

化学中有许多发音相似但含义不同的词。例如：原子与分子，元素与化合物，混合物与纯净物，离子与同位素（虽属 KS4，但知识拓展时可能出现）。专注于清晰定义并使用对比表格。

Confusing Pair | 易混对	Key Distinction | 关键区别
Atom vs Molecule	Atom is a single particle; a molecule is two or more atoms chemically bonded together.
Element vs Compound	Element contains only one type of atom; compound contains two or more types chemically combined.
Mixture vs Pure substance	Mixture can be separated physically; pure substance has a fixed composition and properties.

中文：

易混对	关键区别
原子 vs 分子	原子是单个粒子；分子是两个或更多原子通过化学键结合。
元素 vs 化合物	元素只含一种原子；化合物含两种或更多种化学结合的原子。
混合物 vs 纯净物	混合物可通过物理方式分离；纯净物有固定组成和性质。

Create flashcards with the word on one side and the definition plus an example on the other.

制作一面是单词、另一面是定义和例子的抽认卡。

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12. Putting It All Together: Active Recall and Spaced Repetition | 综合运用：主动回忆与间隔重复

The best memory techniques involve self-testing and reviewing over time. Use the Leitner system with flashcards, or apps that implement spaced repetition. Every day, pick five terms and try to recall their definitions from memory before looking them up.

最佳记忆技巧涉及自我测试和间隔复习。使用抽认卡的莱特纳系统，或使用实施间隔重复的应用程序。每天挑选五个术语，在查阅前尝试从记忆中回忆其定义。

In addition, teach the terms to a classmate or a family member. Explaining ‘distillation’ or ‘neutralisation’ in your own words reveals any gaps in understanding.

此外，把这些术语教给同学或家人。用自己的话解释“蒸馏”或“中和”可暴露理解上的任何漏洞。

Finally, keep a vocabulary journal where you write the term, a simple definition, a memory clue, and a sentence using the term in a correct chemical context.

最后，准备一本词汇日志，写下术语、简单定义、记忆线索以及用该术语在正确化学语境下造的句子。

Published by TutorHao | Chemistry Revision Series | aleveler.com

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