📚 AS CAIE Science: Vocabulary & Terminology Quick-Memory Guide | AS CAIE 科学：词汇术语速记指南
Mastering scientific vocabulary is essential for success in AS CAIE Science. Whether you are studying Physics, Chemistry or Biology, the precise use of terminology helps you understand concepts, answer exam questions accurately and gain the marks reserved for correct language. This guide provides proven techniques, essential term lists and quick-memory strategies to help you retain and use the right words with confidence.
掌握科学词汇是AS CAIE科学成功的关键。无论你学习物理、化学还是生物，准确使用术语有助于理解概念、精准作答并拿到专门分配给规范用语的分数。本指南提供行之有效的技巧、核心术语清单以及速记策略，帮助你自信地记住并运用正确的术语。
1. Why Precise Terminology Matters in CAIE AS Exams | 为何精准术语在CAIE AS考试中至关重要
Cambridge Assessment International Education (CAIE) mark schemes explicitly reward the correct use of scientific vocabulary. For example, writing ‘mass’ instead of ‘weight’ or ‘speed’ instead of ‘velocity’ can lose marks because these words carry different physical meanings. Examiners expect you to demonstrate not just recall, but also the ability to apply terms in context, such as explaining why ‘the rate of reaction increases’ rather than simply saying ‘it gets faster’.
剑桥国际考评(CAIE)的评分方案明确奖励科学词汇的正确使用。例如，写下’mass’而非’weight’或’speed’而非’velocity’可能丢分，因为这些词语具有不同的物理含义。考官不仅希望你简单回忆，更期待你能在上下文中运用术语，比如解释’反应速率增加’而不仅仅说’反应变快’。
Precision also prevents confusion in structured questions. In Biology, ‘osmosis’ describes the movement of water molecules through a partially permeable membrane down a water potential gradient; using ‘diffusion’ generically would be inaccurate. In Chemistry, ‘electronegativity’ refers to an atom’s ability to attract bonding electrons, while ‘electron affinity’ relates to energy change when an electron is added – a common misunderstanding that can cost marks. Therefore, memorising exact definitions and their subtle differences is a key high-impact revision activity.
准确用词还能避免简答题中的混淆。在生物中，’osmosis’特指水分子沿水势梯度透过部分渗透膜的运动；泛泛使用’diffusion’是不准确的。在化学中，’electronegativity’指原子吸引键合电子的能力，而’electron affinity’指加入一个电子时的能量变化——这种常见误解会造成失分。因此，精确记住定义及其微妙差别是一项高回报的复习活动。
2. Techniques for Memorising Scientific Terms | 记忆科学术语的技巧
Rote repetition alone is rarely effective. Combine multi-sensory methods: say the term aloud, write it by hand and create a visual image associated with its meaning. For example, to remember ‘endothermic’, picture ‘endo’ (inside) and ‘thermic’ (heat) – heat going into a system, like ice melting. This word-part analysis (etymology) works powerfully across all three sciences.
单纯机械重复往往效果不佳。结合多感官方法：大声念出术语、用手书写并创建一个与其含义相关的视觉图像。例如，要记住’endothermic’，想象’endo’（内）和’thermic’（热）——热量进入系统，如同冰块融化。这种词根分析法在三个科学学科中都非常有效。
Another technique is the method of loci (memory palace). Imagine a familiar place, such as your bedroom, and assign each term to a location. For an AS Physics revision on ‘waves’, you could place ‘amplitude’ on your desk, ‘frequency’ on the window and ‘wavelength’ along the curtain rail, making a story as you walk through. The sillier the connections, the more memorable they become.
另一个技巧是地点记忆法（记忆宫殿）。想象一个熟悉的地方，比如你的卧室，将每个术语分配到一个位置。在复习AS物理’波’时，你可以把’amplitude’放在书桌上，’frequency’放在窗户上，’wavelength’沿着窗帘轨道，边走边编故事。联系越荒诞，记忆越深刻。
Chunking also helps: group related terms into clusters. For Chemistry ‘enthalpy changes’, learn together: enthalpy of combustion, enthalpy of formation, enthalpy of neutralisation. Link them through a common equation ΔH = H(products) – H(reactants). Repeated exposure in different contexts (flashcards, mind maps, past-paper questions) moves vocabulary from short-term to long-term memory.
组块法同样有效：把相关术语分类簇群。对于化学’焓变’，一同学习：燃烧焓、生成焓、中和焓，并通过共同公式 ΔH = H(产物) – H(反应物) 串联。在不同情境下反复接触（闪卡、思维导图、真题）能将词汇从短期记忆转向长期记忆。
3. Common Prefixes and Suffixes Across Sciences | 科学中通用词根词缀速览
Recognising Greek and Latin roots instantly unlocks thousands of terms. The table below shows high-frequency building blocks that appear in Physics, Chemistry and Biology. By learning these, you can often deduce a term’s meaning even when encountering it for the first time.
识别希腊语和拉丁语词根能瞬间解锁成千上万个术语。下表展示了物理、化学和生物中高频出现的构词元素。学会这些，你甚至能在初次遇到一个术语时推断其含义。
| Prefix / Suffix | Meaning | Example in Science | 中文含义 |
|---|---|---|---|
| photo- | light | photosynthesis, photoelectric | 光 |
| endo- | inside, within | endothermic, endocytosis | 内 |
| exo- | outside, outward | exothermic, exoskeleton | 外 |
| hyper- | above, excessive | hypertonic, hypertension | 超、过高 |
| hypo- | below, deficient | hypotonic, hypothesis | 低、不足 |
| -lysis | breaking down | hydrolysis, electrolysis | 分解 |
| -gen | producing | antigen, pathogen, halogen | 原、产生 |
| -philic | loving, attracted to | hydrophilic, nucleophilic | 亲… |
| -phobic | fearing, repelling | hydrophobic, hydrophobic | 疏… |
Learning a handful of these roots is like acquiring a master key. For instance, ‘electrolysis’ becomes clear: electro- (electricity) + -lysis (splitting) – splitting using electricity. This strategy cuts rote memorisation by more than half.
学习少量这类词根宛如获得一把万能钥匙。例如，’electrolysis’变得清晰：electro-（电） + -lysis（分解）——用电分解。该策略能减少一半以上的死记硬背。
4. Physics Terminology Essentials for AS CAIE | AS物理核心术语速记
In AS Physics, precise vocabulary centres on mechanics, waves, electricity and particle physics. Start with the fundamental quantities and their SI units, as exam questions often ask you to state or compare them. Use a structured table to mentally organise definitions, symbols and base units.
在AS物理中，精确术语集中于力学、波、电学和粒子物理。从基础物理量及其国际单位开始，因为考题常要求陈述或比较它们。用一张结构化表格在头脑中组织定义、符号和基本单位。
| Physical Quantity | Common Symbol | SI Unit | 中文术语 |
|---|---|---|---|
| Displacement | s | m (metre) | 位移 |
| Velocity | v | m s⁻¹ | 速度 |
| Acceleration | a | m s⁻² | 加速度 |
| Momentum | p | kg m s⁻¹ | 动量 |
| Force | F | N (newton) | 力 |
| Potential difference | V | V (volt) | 电势差 |
| Resistance | R | Ω (ohm) | 电阻 |
| Wavelength | λ | m | 波长 |
Several crucial distinctions must be memorised: ‘speed’ (scalar) versus ‘velocity’ (vector); ‘distance’ versus ‘displacement’; ‘mass’ versus ‘weight’. Teach yourself to always ask: Does this quantity have a direction? If yes, it is a vector. Linking such pairs with a simple sentence helps: ‘Velocity is speed with a specific direction.’
必须牢记几个关键区别：’speed’（标量）与’velocity’（矢量）；’distance’与’displacement’；’mass’与’weight’。训练自己始终提问：这个量有方向吗？若有，就是矢量。用简单一句话联系二者：’Velocity是有特定方向的速度。’
For waves, terms such as ‘phase difference’, ‘coherence’, ‘diffraction’ and ‘interference’ are frequently tested. Phase difference is best remembered as the fraction of a cycle by which two waves are out of step, often expressed in radians or degrees. A mnemonic: ‘Calm People Dance In Phase’ -> Coherent waves have constant Phase Difference and same wavelength. Create similar personalised phrases.
对于波，’phase difference’、’coherence’、’diffraction’和’interference’等术语经常考察。相位差最好记为两个波不同步的周期分数，常用弧度或度表示。助记符：’Calm People Dance In Phase’（平静的人同相位起舞）——相干波具有恒定的相位差和相同的波长。创建类似的个性化短语。
5. Chemistry Terminology Essentials for AS CAIE | AS化学核心术语速记
AS Chemistry vocabulary revolves around atomic structure, bonding, energetics, kinetics and organic chemistry. Many terms have strict definitions that must be quoted verbatim. Start with the mole concept: ‘The mole is the amount of substance that contains the same number of particles as there are atoms in exactly 12 g of carbon-12.’ This precise wording often repeats in mark schemes.
AS化学词汇围绕原子结构、键合、能量学、动力学和有机化学。许多术语有严格定义，必须逐字引用。从摩尔概念开始：’摩尔是物质所含粒子数与恰好12克碳-12所含原子数相同的物质的量。’ 这种精确措辞常出现在评分方案中。
Key energy terms include ‘enthalpy change’ (ΔH), ‘activation energy’ (Eₐ), ‘standard enthalpy of combustion’ (ΔH_c°) and ‘standard enthalpy of formation’ (ΔH_f°). Remember that standard conditions are 298 K, 100 kPa and 1 mol dm⁻³ for solutions. Use the symbol Δ (Delta) meaning ‘change in’, and always include the sign: exothermic reactions have negative ΔH, endothermic have positive.
关键能量术语包括’焓变’ (ΔH)、’活化能’ (Eₐ)、’标准燃烧焓’ (ΔH_c°)和’标准生成焓’ (ΔH_f°)。记住标准条件是298 K、100 kPa和溶液浓度1 mol dm⁻³。使用符号 Δ（Delta）表示’…的变化’，务必包含正负号：放热反应ΔH为负，吸热为正。
In bonding, terms like ‘electronegativity’, ‘dipole moment’, ‘dative covalent bond’ (also called coordinate bond) and ‘metallic bonding’ often appear. Visualise electronegativity as a tug-of-war for shared electrons. A simple memory aid: ‘FONClBrISCH’ – the electronegativity trend: Fluorine > Oxygen > Nitrogen > Chlorine > Bromine etc. (although you only need to know the trend across a period).
键合方面，’electronegativity’、’偶极矩’、’配位共价键’（也称配位键）和’金属键’等术语常出现。将电负性想象成一场对共享电子的拔河赛。简单记忆：’FONClBrISCH’——电负性次序：氟>氧>氮>氯>溴等（尽管你只需了解跨周期的趋势）。
Organic chemistry introduces ‘homologous series’, ‘functional group’, ‘structural isomerism’ and ‘stereoisomerism’. To differentiate isomers: structural isomers have the same molecular formula but different structural formulae (e.g., butane and methylpropane). Stereoisomers have the same structural formula but different spatial arrangement (E/Z or optical isomers). Repetition through drawing and naming compounds locks these in.
有机化学引入了’同系列’、’官能团’、’结构异构’和’立体异构’。要区分异构体：结构异构体具有相同分子式但不同结构式（如丁烷和甲基丙烷）。立体异构体具有相同结构式但不同空间排列（E/Z或光学异构）。通过反复绘制和命名化合物来锁定这些术语。
6. Biology Terminology Essentials for AS CAIE | AS生物核心术语速记
AS Biology demands an extensive vocabulary covering cell biology, biochemistry, genetics and ecology. Precision is vital: ‘mitosis’ and ‘meiosis’ are not interchangeable; ‘chromosome’, ‘chromatid’ and ‘chromatin’ describe different forms of DNA organisation. Create specific flashcards with a diagram on one side and the definition on the reverse.
AS生物要求广泛的词汇，覆盖细胞生物学、生化、遗传学和生态学。精确性至关重要：’mitosis’和’meiosis’不可互换；’chromosome’、’chromatid’和’chromatin’描述了DNA组织的不同形式。制作专门闪卡，一面画图，另一面写定义。
Cell membrane transport terms often confuse students. Remember: ‘diffusion’ is the net movement of particles from a region of higher concentration to lower concentration down a concentration gradient, while ‘osmosis’ is the net movement of water molecules through a partially permeable membrane from a region of higher water potential to lower water potential. ‘Active transport’ uses energy (ATP) to move substances against the gradient using carrier proteins.
细胞膜运输术语常让学生困惑。记住：’diffusion’是微粒从高浓度区到低浓度区沿浓度梯度的净运动；’osmosis’是水分子通过部分渗透膜，从高水势区域到低水势区域的净运动；’active transport’利用能量（ATP）通过载体蛋白逆梯度运输物质。
Enzyme terminology is heavily examined: ‘active site’, ‘substrate’, ‘enzyme-substrate complex’, ‘lock-and-key hypothesis’, ‘induced-fit model’, ‘denaturation’, ‘competitive inhibitor’ and ‘non-competitive inhibitor’. The induced-fit model states that the active site changes shape slightly to accommodate the substrate, much like a handshake tightening. Repeat this narrative to yourself; do not simply memorise words.
酶相关术语考察频繁：’活性位点’、’底物’、’酶-底物复合物’、’锁钥假说’、’诱导契合模型’、’变性’、’竞争性抑制剂’和’非竞争性抑制剂’。诱导契合模型指出活性位点轻微改变形状以容纳底物，就像握手时握紧一样。把这些叙述讲给自己听；不要只是背单词。
In genetics, distinguish between ‘gene’ (a sequence of DNA nucleotides that codes for a polypeptide), ‘allele’ (a variant form of a gene), ‘genotype’ (the genetic constitution) and ‘phenotype’ (the observable characteristics). Use a simple equation: genotype + environment = phenotype. The terms ‘homozygous’, ‘heterozygous’, ‘dominant’ and ‘recessive’ follow naturally from allele interactions. Always define before applying in exam answers.
遗传学中，区分’gene’（编码多肽的DNA核苷酸序列）、’allele’（基因的变体形式）、’genotype’（遗传组成）和’phenotype’（可观察的特征）。使用简单等式：基因型 + 环境 = 表现型。’homozygous’、’heterozygous’、’dominant’和’recessive’等术语自然会从等位基因相互作用中引出。在答题时务必先下定义再应用。
7. Linking Terms Through Concept Maps | 用概念图连接术语
Isolated vocabulary is easily forgotten. Draw a concept map where central themes branch into subtopics and key terms. For AS Physics ‘electricity’, place ‘current’ in the middle, then link to ‘potential difference’, ‘resistance’, ‘Ohm’s law’ (V=IR), ‘resistivity’ and ‘power’ (P=IV). Add formula and unit relationships along the arrows.
孤立词汇极易遗忘。画一张概念图，中心主题分支为子主题和关键术语。对AS物理’电学’，将’电流’放在中心，然后连接到’电势差’、’电阻’、’欧姆定律’ (V=IR)、’电阻率’和’功率’ (P=IV)。沿箭头加上公式和单位关系。
For Chemistry, create a map of ‘bonding’ with three main branches: ionic, covalent and metallic. Under covalent, add ‘polar’, ‘non-polar’, ‘dative covalent’, ‘sigma and pi bonds’. Link to ‘electronegativity’ and ‘intermolecular forces’. Colour-coding (e.g., blue for definitions, red for equations) helps visual memory. Spend 10 minutes each week redrawing your maps from memory to reinforce retrieval pathways.
化学方面，创建’键合’概念图，三大分支：离子键、共价键和金属键。在共价键下添加’极性’、’非极性’、’配位共价键’、’sigma键和pi键’。连接到’电负性’和’分子间作用力’。颜色编码（如蓝色标注定义，红色标注公式）有助于视觉记忆。每周花10分钟凭记忆重绘概念图，强化提取路径。
In Biology, a ‘cell’ concept map can include organelles, their functions and related processes. For ‘mitochondria’, link to ‘aerobic respiration’, ‘ATP synthesis’, ‘matrix’ and ‘cristae’. Include equations: C₆H₁₂O₆ + 6O₂ → 6CO₂ + 6H₂O + energy. By constructing these links, you move beyond passive recognition to active recall, which is critical for exam performance.
在生物中，’细胞’概念图可以包含细胞器、功能及关联过程。对’线粒体’，关联’
Published by TutorHao | AS Science Revision Series | aleveler.com
更多咨询请联系16621398022（同微信）
屏轩国际教育cambridge primary/secondary checkpoint, cat4, ukiset,ukcat,igcse,alevel,PAT,STEP,MAT, ibdp,ap,ssat,sat,sat2课程辅导，国外大学本科硕士研究生博士课程论文辅导