📚 Year 12 CAIE Science: Vocabulary & Terminology Quick Memorisation Guide | Year 12 CAIE 科学：词汇术语速记指南
In Year 12 CAIE Science, command of subject-specific terminology is not just about passing exams — it is the gateway to thinking like a scientist. Whether you are grappling with vector quantities in physics, enthalpy changes in chemistry, or organelle functions in biology, the ability to recall and apply precise terms instantly gives you a critical edge in both structured questions and multiple-choice papers. This guide provides systematic memory strategies, root deconstruction, and cross-disciplinary comparisons to help you build a robust scientific vocabulary that sticks.
在 Year 12 CAIE 科学课程中，掌握学科术语不仅是为了通过考试，更是像科学家一样思考的入口。无论你正在与物理中的矢量、化学中的焓变还是生物中的细胞器功能作斗争，能够即时准确地回忆和应用术语能让你在结构化问题和选择题中占据关键优势。本指南提供系统的记忆策略、词根拆解以及跨学科比较，帮助你建立牢固、持久不忘的科学词汇库。
1. Why Terminology Mastery is a Game-Changer | 为何掌握术语能改变游戏规则
Every mark scheme in CAIE science exams rewards precise language. A student who writes 'rate of change of displacement' instead of 'velocity' may still get a mark, but one who confidently states 'velocity' demonstrates clarity and saves precious time. More importantly, scientific terms are concept containers; they compress complex ideas into single words. By internalising them, you enhance not only your written answers but also your ability to interpret novel problems.
CAIE 科学考试的每一份评分方案都青睐精确的语言。写了一长串'位移的变化率'而非'速度'的学生或许仍能得分，但自信写出'速度'的学生展现了清晰度并节省了宝贵的时间。更重要的是，科技术语是概念的载体，它们将复杂的想法压缩进单个词语。通过内化这些术语，你不仅能提升书面作答的质量，还能增强解读新问题的能力。
Start by keeping a personal glossary for each science subject. Use colour-coding: blue for physics, red for chemistry, green for biology. Update it after every lesson, and review it using active recall — cover the definition and try to articulate the term aloud. This simple habit reinforces neural pathways and makes retrieval automatic during high-pressure exams
从为每一门科学科目建立个人词汇表开始。使用颜色编码：物理用蓝色，化学用红色，生物用绿色。每次课后更新，并采用主动回忆法复习——遮住定义，尝试大声说出术语。这个简单的习惯能强化神经通路，使你在高压考试中做到自动提取。
2. Decoding Roots, Prefixes & Suffixes | 解码词根、前缀与后缀
Scientific vocabulary is largely built from Greek and Latin morphemes. Once you recognise common building blocks, unfamiliar terms become guessable. For instance, 'photo-' means light, 'endo-' means inside, 'exo-' means outside, and '-lysis' means splitting. This morphological awareness turns intimidating words like 'photolysis' (splitting by light) or 'endocytosis' (cell taking in material) into logical puzzles rather than arbitrary labels.
科学词汇大多由希腊语和拉丁语词素构成。一旦你识别出常见的构词模块，生僻术语就变得可猜测。例如，'photo-' 表示光，'endo-' 表示内，'exo-' 表示外，'-lysis' 表示分解。这种词法意识能把像 'photolysis'（光解）或 'endocytosis'（胞吞作用）这样令人生畏的词，从随意标签转化为逻辑谜题。
The table below lists high-frequency affixes that appear across Physics, Chemistry and Biology. Memorise these fifteen chunks, and you will instantly decrypt a vast number of new terms encountered in past papers.
下表列出了在物理、化学和生物中反复出现的高频词缀。记住这十五个组块，你就能瞬间解读往年试卷中遇到的大量新术语。
| Affix | Meaning | Science Example |
|---|---|---|
| iso- | equal, same | isotopes, isothermal |
| hyper- | above, excessive | hypertonic, hyperopia |
| hypo- | below, under | hypotonic, hypothesis |
| mono- / uni- | one | monomer, uniform acceleration |
| poly- / multi- | many | polymer, polypeptide |
| di- / bi- | two | disaccharide, biconvex |
For each affix, create a visual flashcard with the English meaning on one side and the Chinese equivalent on the other. Test yourself bidirectionally: seeing 'iso-' and recalling 'same/相同', then seeing '相同' and recalling 'iso-'. This dual coding strengthens both language systems in your brain.
对于每一个词缀，制作一面写英文含义、另一面写中文对应词的视觉闪卡。进行双向自测：看到 'iso-' 回忆起 'same/相同'，再看到 '相同' 回忆起 'iso-'。这种双重编码能同时强化大脑中的两种语言系统。
3. Physics: Mechanics & Motion Terms | 物理：力学与运动术语
Mechanics vocabulary revolves around vectors, rates, and conservation laws. Misusing 'speed' for 'velocity' or 'momentum' for 'kinetic energy' can cost multiple marks. Always associate the full definition with SI units to anchor the term in quantitative thinking.
力学词汇围绕着矢量、变化率和守恒定律。将 'speed' 误用作 'velocity'，或将 'momentum' 与 'kinetic energy' 混淆，可能导致大量失分。务必把完整定义与 SI 单位联系起来，将术语锚定在量化思维中。
Key term: Velocity (m s⁻¹) — rate of change of displacement; a vector. Contrast with speed, which is scalar. Remember the mnemonic: 'VELocity has Direction, SPEED Does Not.'
关键术语：Velocity（速度，单位 m s⁻¹）——位移的变化率；矢量。与标量 speed 对比。记住助记口诀："速度（VELocity）有方向，速率（SPEED）没有。"
Key term: Momentum (kg m s⁻¹) — . Think of a heavy truck and a fast car: both can have high momentum. Equation: p = m × v.
关键术语：Momentum（动量，单位 kg m s⁻¹）——质量与速度的乘积。在孤立系统中守恒。想象一辆重型卡车和一辆快速轿车：两者都可以有高动量。公式：p = m × v。
Key term: Impulse (N s) — lso force × time. The area under a force-time graph gives impulse. Link it in your mind to 'impact' — a short, large force changes momentum rapidly.
关键术语：Impulse（冲量，单位 N s）——动量的变化量，也等于力 × 时间。力-时间图下的面积表示冲量。在脑海中将其与"冲击"关联——短时大力会迅速改变动量。
4. Physics: Waves & Electricity Terms | 物理：波动与电学术语
Wave terminology demands precise spatial and temporal language. Terms like 'amplitude', 'wavelength', and 'frequency' must be distinguishable at a glance. For electricity, clarity about 'current', 'potential difference', and 'resistance' forms the bedrock of circuit analysis.
波动术语需要精确的空间和时间语言。'振幅'、'波长'和'频率'等术语必须一眼就能区分。对于电学，清晰理解 'current'、'potential difference' 和 'resistance' 是电路分析的基石。
f λ, underline that λ is wavelength in metres, f is frequency in Hz, and v remains constant for a given medium.
视觉化记忆关系：画一个横波草图，在纵轴上标位移，根据情况选择距离或时间作为横轴。对于波速公式 v = f λ，强调 λ 是波长（米），f 是频率（赫兹），v 在给定介质中保持恒定。
In electricity, never say 'voltage flows'; instead say 'current flows due to a potential difference'. Current (ampere, A) is flow rate of charge. Potential difference (volt, V) is energy transferred per unit charge. Resistance (ohm, Ω) is the ratio V/I. Use Ohm's law: V = I × R as a mnemonic triangle: cover the quantity you seek.
在电学中，绝不要说"电压流动"；而要说"电流在电势差驱动下流动"。Current（电流，安培 A）是电荷的流动速率。Potential difference（电势差，伏特 V）是单位电荷转移的能量。Resistance（电阻，欧姆 Ω）是 V/I 的比值。用欧姆定律 V = I × R 构成助记三角形：遮住你要求的量。
5. Chemistry: Atomic Structure & Bonding Terms | 化学：原子结构与化学键术语
Atomic structure introduces terms like atomic number, mass number, isotopes, and orbitals. The distinction between 'relative atomic mass' and 'relative isotopic mass' is a common pitfall. Always anchor these to the carbon-12 scale.
原子结构引入了原子序数、质量数、同位素和轨道等术语。'相对原子质量'与'相对同位素质量'的区别是常见陷阱。务必以碳-12标度为基准进行理解。
Use etymology: 'isotope' from iso- (same) and topos (place) — same position in periodic table, hence same proton number. 'Isoelectronic' means same electron configuration. These patterns appear repeatedly.
运用词源学：'isotope' 来自 iso-（相同）和 topos（位置）——在周期表中位置相同，因而质子数相同。'Isoelectronic' 表示电子构型相同。这些模式反复出现。
Bonding vocabulary: Ionic bond — electrostatic attraction between oppositely charged ions (formed by electron transfer). Covalent bond — shared pair of electrons. Metallic bond — lattice of positive ions delocalised electrons. Create a comparison table in your notes with headings: Type | Particles | Force | Example. Drawing dot-and-cross diagrams forces you to link term with structure.
化学键词汇：Ionic bond（离子键）——带相反电荷离子间的静电吸引（由电子转移形成）。Covalent bond（共价键）——共享电子对。Metallic bond（金属键）——阳离子晶格与离域电子。在笔记中创建对比表，标题为：类型 | 粒子 | 作用力 | 实例。绘制点叉图能迫使你将术语与结构联系起来。
6. Chemistry: Energetics & Organic Terms | 化学：能量学与有机术语
Thermochemistry demands precise sign conventions. Exothermic reactions release heat to surroundings (ΔH negative). Endothermic reactions absorb heat (ΔH positive). The word 'enthalpy change' (ΔH) is often confused with 'heat'; enthalpy is total heat content at constant pressure. Use the mnemonic 'EXothermic — EXit heat, EXothermic gives out; ENdothermic — ENter heat, ENdothermic takes in.'
热化学要求严格的符号规则。Exothermic（放热）反应向环境释放热量（ΔH 为负）。Endothermic（吸热）反应吸收热量（ΔH 为正）。'Enthalpy change'（焓变 ΔH）常与'热量'混淆；焓是在恒压下的总热含量。记住助记法："EXothermic — 热退出，EXit 向外；ENdothermic — 热进入，ENter 向内。"
In organic chemistry, homologous series are families of compounds with the same general formula and similar chemical properties. Functional group is the atom or group responsible for characteristic reactions. Understand that 'alkane' means single bonds only, 'alkene' contains C=C double bond. The suffix '-ane', '-ene', '-yne' systematically indicates bond saturation.
在有机化学中，homologous series（同系物）是具有相同通式和相似化学性质的化合物家族。Functional group（官能团）是决定特征反应的原子或基团。要理解 'alkane' 只含单键，'alkene' 含 C=C 双键。后缀 '-ane'、'-ene'、'-yne' 系统地指示键的饱和程度。
Isomerism vocabulary: Structural isomers have the same molecular formula but different structural arrangement of atoms. Stereoisomers have the same structural formula but different arrangement in space. These terms are tested heavily; always draw two clear examples when revising.
异构体词汇：Structural isomers（结构异构体）具有相同的分子式但原子连接顺序不同。Stereoisomers（立体异构体）具有相同的结构式但空间排列不同。这些术语在考试中频繁出现；复习时一定要画出两个清晰的实例。
7. Biology: Cell Structure & Biomolecules Terms | 生物：细胞结构与生物分子术语
Cell biology is loaded with organelle names. Mitochondrion (site of aerobic respiration), Ribosome (protein synthesis), Golgi apparatus (modifies and packages proteins). Use vivid imagery: imagine mitochondria as 'powerhouses' with folded inner membranes (cristae) like turbine halls. Ribosomes are tiny 'factories' made of rRNA and protein, floating free or on rough endoplasmic reticulum.
细胞生物学充满了细胞器名称。Mitochondrion（线粒体，有氧呼吸场所）、Ribosome（核糖体，蛋白质合成）、Golgi apparatus（高尔基体，修饰和包装蛋白质）。使用生动的比喻：把线粒体想象成带有折叠内膜（嵴）的"动力工厂"，如同涡轮大厅。核糖体是由 rRNA 和蛋白质构成的微小"工厂"，游离存在或附着在粗面内质网上。
Transport terms: Diffusion — net movement of particles from region of higher to lower concentration, down concentration gradient, passive. Osmosis — specifically, net movement of water molecules through a partially permeable membrane from higher water potential to lower water potential. Active transport — movement against gradient, requiring carrier proteins and ATP. Always specify 'water potential' not 'concentration' for osmosis.
运输术语：Diffusion（扩散）——粒子沿浓度梯度从高浓度区域到低浓度区域的净移动，被动过程。Osmosis（渗透）——特指水分子通过部分渗透膜从高水势到低水势的净移动。Active transport（主动运输）——逆梯度移动，需要载体蛋白和 ATP。对于渗透作用，永远使用 'water potential' 而非只能 'concentration'。
Biomolecules: Monosaccharide (single sugar, e.g. glucose), Disaccharide (two monosaccharides, e.g. sucrose), Polysaccharide a DNA nucleotide: phosphate group, deoxyribose sugar, nitrogenous base (A,T,C,G). The term 'complementary base pairing' refers to specific hydrogen bonds: A=T and C≡G.
生物分子：Monosaccharide（单糖，如葡萄糖）、Disaccharide（二糖，由两个单糖组成，如蔗糖）、Polysaccharide（多糖，如纤维素）。DNA 核苷酸结构：磷酸基团、脱氧核糖、含氮碱基（A,T,C,G）。术语 'complementary base pairing' 指特异氢键配对：A=T 和 C≡G。
8. Biology: Physiology & Ecology Terms | 生物：生理学与生态学术语
Enzyme terminology is vital. Active site — specific region on enzyme surface where substrate binds. Denaturation — permanent loss of tertiary structure, often by heat or extreme pH, preventing substrate binding. The 'lock and key' model is a memorable analogy; newer 'induced fit' model states the active site changes shape slightly upon binding. Compare both in your glossary.
酶学术语至关重要。Active site（活性位点）——酶表面与底物结合的特异区域。Denaturation（变性）——因高温或极端 pH 导致的永久性三维结构丧失，使底物无法结合。"锁钥"模型是易记的类比；较新的"诱导契合"模型指出活性位点在结合时会略微变形。在词汇表中比较两者。
Homeostasis and feedback: Negative feedback is a mechanism where a change triggers a response that counteracts the initial change, maintaining equilibrium (e.g., blood glucose regulation). Positive feedback amplifies change (e.g., oxytocin during childbirth). Connect the phrases: "negative negates, positive promotes" to avoid confusion.
稳态与反馈：Negative feedback（负反馈）是一种机制，变化引发抵消该变化的反应，维持平衡（如血糖调节）。Positive feedback（正反馈）放大变化（如分娩时催产素的作用）。连接短语："negative negates（负性抵消），positive promotes（正性促进）"，避免混淆。
Ecology terms: Population — all organisms of one species in an area. Community — all populations of different species. Ecosystem — community plus abiotic environment. Habitat — s. The hierarchy: organism → population → community → ecosystem. Visualise nested circles.
生态学术语：Population（种群）——某一区域内同一物种的所有个体。Community（群落）——所有不同物种种群的总和。Ecosystem（生态系统）——群落加上非生物环境。Habitat（栖息地）——生物生活的具体场所。层级为：生物体 → 种群 → 群落 → 生态系统。用嵌套圆圈可视化。
9. Cross-Discipline Vocabulary Traps | 跨学科词汇陷阱
Many words appear in all three sciences but carry distinct meanings. 'Concentration' in chemistry means amount of solute per unit volume (mol dm⁻³); in biology, it may refer to gradient-driven diffusion. 'Potential' in physics often denotes electric potential or potential energy, while in biology 'water potential' (Ψ) is a measure of free energy of water. Always define the term within its discipline immediately when studying.
许多词汇在三门科学中都出现，但含义迥异。'Concentration' 在化学中指单位体积内溶质的量（mol dm⁻³）；在生物中可能指驱动扩散的梯度。'Potential' 在物理中常指电势或势能，而在生物中 'water potential'（水势 Ψ）是衡量水分自由能的指标。学习时务必立即在学科语境下定义术语。
Another example: 'reduction' in chemistry means gain of electrons (OIL RIG: Oxidation Is Loss, Reduction Is Gain). In physics, 'reduction' might appear in context of sound or energy reduction, a general decrease. In biology, reduction describes a chemical process in photosynthesis (reduction of carbon dioxide). Use colour-coded post-it notes to tag these discipline-specific meanings in your revision notes.
另一个例子：'reduction' 在化学中意为得电子（OIL RIG 口诀：氧化失电子，还原得电子）。在物理中，'reduction' 可能出现在声音或能量衰减的语境中，表示一般性的减少。在生物学中，还原描述光合作用中的一个化学过程（二氧化碳的还原）。用彩色便利贴在复习笔记中标出这些学科专属含义。
10. Active Recall, Mnemonics & Spaced Learning | 主动回忆、记忆术与间隔学习
Passive re-reading is the enemy of terminology retention. Replace it with active recall: write the term, cover notes, and speak the full definition aloud before checking. Research shows this testing effect dramatically improves memory. Combine with spaced repetition: review terms after 1 day, 3 days, 1 week, 1 month. Digital flashcard apps like Anki can schedule this automatically.
被动重读是术语记忆的大敌。用主动回忆取而代之：写下术语，盖上笔记，先大声说出完整定义再核对。研究显示这种测试效应能极大提升记忆。结合间隔重复：隔 1 天、3 天、1 周、1 个月进行复习。Anki 等数字闪卡应用可自动安排复习时间。
Create bizarre, multisensory mnemonics for tricky sets. For the electromagnetic spectrum order (Radio, Microwave, Infrared, Visible, Ultraviolet, X-ray, Gamma): "Rabbits Meet In Very Unusual Xciting Gardens." For reactivity series of metals: "Please Stop Calling Me A Cute Zebra, I Love Henry's Crazy Snake." Personalise the sentences to make them emotionally sticky.
为棘手的系列词创造荒诞、多感官的助记句。电磁波谱顺序（无线电波、微波、红外线、可见光、紫外线、X 射线、伽马射线）："Rabbits Meet In Very Unusual Xciting Gardens." 金属活动性顺序："请别叫我可爱斑马，我喜爱亨利疯狂的蛇。" 将句子个性化，使之在情感上更难忘。
Interleaving is another powerful technique: mix physics, chemistry, and biology terms in one study session rather than blocking by subject. This forces your brain to discriminate between similar-sounding words and strengthens retrieval pathways. Set a 20-minute timer with short bursts of cross-discipline vocabulary recall daily.
交错学习是另一项强大技巧：在同一个学习时段中混合物理、化学和生物术语，而非按学科集中复习。这迫使你的大脑区分发音相似的词汇，强化提取通路。设定一个 20 分钟的计时器，每天进行短时交叉学科词汇回忆训练。
Published by TutorHao | Science Revision Series | aleveler.com
更多咨询请联系16621398022（同微信）
或截图后用「扫一扫 → 相册」选择本图