Year 13 CCEA Science: Quick Memorisation Guide for Key Terminology | Year 13 CCEA 科学：核心词汇术语速记指南

📚 Year 13 CCEA Science: Quick Memorisation Guide for Key Terminology | Year 13 CCEA 科学：核心词汇术语速记指南

A strong command of scientific terminology is the foundation of success in Year 13 CCEA Science. Whether you are studying Biology, Chemistry, or Physics, the sheer volume of new words can feel overwhelming. This guide breaks down tricky terms, roots, and concepts into bite-sized memory hooks, helping you recall definitions quickly and accurately in exams.

扎实地掌握科学术语是 Year 13 CCEA 科学取得成功的基础。无论你学习的是生物学、化学还是物理学，庞大的新词汇量都可能让人感到不知所措。本指南将棘手的术语、词根和概念拆解成易于消化的小块记忆钩子，帮助你在考试中快速准确地回忆定义。

1. Decoding Word Roots: Prefixes and Suffixes | 解码词根：前缀与后缀

Science words are like puzzles: once you recognise common prefixes and suffixes, you can often guess the meaning of unfamiliar terms. For example, the prefix ‘mono-‘ means one, ‘di-‘ means two, and ‘poly-‘ means many. Learning these patterns reduces the need for rote memorisation.

科学词汇就像拼图：一旦你认识了常见的前缀和后缀，往往就能猜出不熟悉术语的含义。例如，前缀 ‘mono-‘ 表示一，’di-‘ 表示二，’poly-‘ 表示多。学习这些模式可以减少死记硬背的需要。

Here are some high-yield roots for Year 13:

macro- (large) / micro- (small)
endo- (inside) / exo- (outside)
-lysis (splitting or breakdown)
-ology (the study of)
photo- (light)
thermo- (heat)

以下是一些 Year 13 高频词根：

macro-（大）/ micro-（小）
endo-（内部）/ exo-（外部）
-lysis（分解）
-ology（…学）
photo-（光）
thermo-（热）

A handy mnemonic: ‘Many Elephants Pee Ledges Over Trees’ (Macro, Endo, Photo, Lysis, -Ology, Thermo) creates a silly image but locks the roots in long-term memory.

一个方便的助记法：“Many Elephants Pee Ledges Over Trees”（Macro, Endo, Photo, Lysis, -Ology, Thermo）创造了一个滑稽的画面，却能将词根牢牢锁在长期记忆中。

2. Mechanics Vocabulary: Motion Made Memorable | 力学词汇：让运动更容易记忆

Mechanics is packed with terms that are easily confused. Displacement, velocity, and acceleration sound similar but have precise vector meanings. Start by linking them to everyday actions: displacement is the shortest straight-line distance from start to finish, velocity is speed in a given direction, and acceleration is any change in velocity (not just speeding up).

力学中充满了容易混淆的术语。位移、速度和加速度听起来相似，但有精确的矢量含义。首先将它们与日常动作联系起来：位移是从起点到终点的最短直线距离，速度是给定方向上的速率，加速度是速度的任何变化（不仅仅是加速）。

To remember the SUVAT equations, use the phrase ‘Very Ugly Cats Always Terrify’ for the five variables: s (displacement), u (initial velocity), v (final velocity), a (acceleration), t (time). This gives you instant recall of what each letter stands for.

要记住 SUVAT 方程，可以用短语 “Very Ugly Cats Always Terrify” 来对应五个变量：s（位移）、u（初速度）、v（末速度）、a（加速度）、t（时间）。这能让你瞬间想起每个字母代表的含义。

Another common mix-up is mass versus weight. Say to yourself: ‘Mass is Matter; Weight is a force due to gravity.’ In CCEA Physics, always give weight in newtons (N), not kilograms.

另一个常见混淆是质量与重量。对自己说：“Mass is Matter（质量是物质的量）；Weight is a force due to gravity（重量是重力产生的力）。”在 CCEA 物理学中，重量永远用牛顿（N）表示，而不是千克。

3. Waves Terminology: From Amplitude to Wavelength | 波动术语：从振幅到波长

Waves appear in Physics and also in Chemistry and Biology contexts. Key terms include wavelength (λ), frequency (f), period (T), and amplitude. A classic error is mixing up period and frequency: period is the time for one complete wave cycle, while frequency is the number of cycles per second.

波出现在物理学以及化学和生物学的相关背景中。关键术语包括波长（λ）、频率（f）、周期（T）和振幅。一个经典错误是混淆周期和频率：周期是一个完整波循环所需的时间，而频率是每秒的循环次数。

Use the hand trick: imagine shaking a rope. The more often you shake per second, the higher the frequency; the time it takes for one full shake is the period. Also, remember the equation v = f λ using ‘Very Fast Lions’: velocity equals frequency times wavelength.

使用手势技巧：想象抖动一根绳子。每秒抖动次数越多，频率越高；完成一次完整抖动所需的时间就是周期。同时，用 “Very Fast Lions” 记住方程 v = f λ：速度等于频率乘以波长。

For phase difference in radians, link the full circle 2π = 360° to a clock face. Waves in phase have path differences of nλ, while out of phase by π radians (180°) correspond to (n + ½)λ. Visualise crests and troughs overlapping exactly.

对于以弧度表示的相位差，将整个圆周 2π = 360° 与钟面联系起来。同相的波路径差为 nλ，而相差 π 弧度（180°）对应于 (n + ½)λ。想象波峰和波谷完全对齐的情形。

4. Electricity Lingo: Current, Voltage and Resistance | 电学术语：电流、电压与电阻

Memorising the definitions of current, voltage and resistance is often tested in CCEA exams. Think of the river analogy: current is the rate of flow of charge (litres per second), voltage is the electrical push (water pressure), and resistance is the narrowness of the pipe hindering flow.

记忆电流、电压和电阻的定义经常在 CCEA 考试中出现。可以借助河流类比：电流是电荷流动的速率（每秒流过的升数），电压是电的推力（水压），电阻则是阻碍流动的管道窄度。

For Ohm’s Law, recall the simple triangle V = I × R. Mnemonic: ‘Victoria Is Queen’ (V = I × R). Rearranged, I = V ÷ R and R = V ÷ I. Potential divider questions require you to learn the ratio formula: V_out = V_in × (R₂ / (R₁ + R₂)).

对于欧姆定律，回忆简单的三角形 V = I × R。助记法：“Victoria Is Queen”（V = I × R）。变换后得到 I = V ÷ R 和 R = V ÷ I。电位分压器题目要求你掌握比例公式：V_out = V_in × (R₂ / (R₁ + R₂))。

In circuits, series and parallel rules can be memorised with: ‘Series shares voltage, same current; Parallel shares current, same voltage.’ Draw a house with two floors to visualise the idea.

在电路中，串联和并联的规则可以这样记忆：“串联分压，电流相同；并联分流，电压相同。”画一个两层的房子来形象化这一概念。

5. Chemical Bonding Terms: Ionic, Covalent and Metallic | 化学键术语：离子键、共价键与金属键

Bonding can trip you up if you only learn definitions by heart. Instead, use the ‘tug-of-war’ image: in ionic bonding, one atom completely ‘steals’ an electron (metal to non-metal), forming oppositely charged ions. In covalent bonding, the atoms share electrons like two people holding a blanket.

如果你只是死记硬背定义，化学键会让你犯难。相反，使用“拔河”的形象：在离子键中，一个原子完全“偷走”了一个电子（金属到非金属），形成带相反电荷的离子。在共价键中，原子共享电子，就像两个人共握一条毯子。

Electronegativity is the power of an atom to attract the bonding pair of electrons. The mnemonic ‘FONClBrISCH’ (F, O, N, Cl, Br, I, S, C, H) lists common elements in decreasing electronegativity. The bigger the difference, the more ionic the bond.

电负性是原子吸引键合电子对的能力。助记词 ‘FONClBrISCH’（F, O, N, Cl, Br, I, S, C, H）按电负性递减顺序列出常见元素。电负性差越大，键的离子性越强。

For shapes of molecules, use VSEPR theory: electron pairs repel to positions of minimum repulsion. Count bonding pairs and lone pairs. For example, 4 bonding pairs, 0 lone pairs → tetrahedral (109.5°). ‘Bent or V-shaped’ occurs when there are 2 bonding pairs and 2 lone pairs.

对于分子形状，运用 VSEPR 理论：电子对相互排斥，达到排斥力最小的位置。数一下键合电子对和孤电子对。例如，4个键合电子对，0个孤电子对 → 四面体形（109.5°）。当有2个键合电子对和2个孤电子对时，会出现“弯曲形或V形”。

6. Organic Chemistry Essentials: Homologous Series and Functional Groups | 有机化学要点：同系列与官能团

Year 13 CCEA Chemistry introduces a host of organic families. A homologous series is a family of compounds with the same general formula and a trend in physical properties. The functional group is the reactive part that defines the series.

Year 13 CCEA 化学引入了众多有机化合物家族。同系列是指具有相同通式和物理性质递变规律的化合物家族。官能团是决定该系列特性的反应活性部分。

Memory aid for the first four alkanes: ‘Methane, Ethane, Propane, Butane’ → ‘Monkeys Eat Pink Bananas’. Alkenes contain the C=C functional group; their names end in -ene. Alcohols have the hydroxyl –OH group and end with -ol.

前四个烷烃的记忆诀窍：“甲烷，乙烷，丙烷，丁烷” → “Monkeys Eat Pink Bananas”。烯烃含有 C=C 官能团，名称以 -ene 结尾。醇类含有羟基 –OH，名称以 -ol 结尾。

Isomers are molecules with the same molecular formula but different structural arrangements. The two main types are structural (chain, position, functional group) and stereoisomerism (E/Z). Think of isomers as rearranging the same Lego bricks into different models.

异构体是指分子式相同但结构排列不同的分子。两种主要类型是结构异构（碳链、位置、官能团异构）和立体异构（E/Z 异构）。可以将异构体想象成用同样的乐高积木搭建出不同的模型。

7. Cell Biology Terminology: Organelles Unlocked | 细胞生物学术语：解锁细胞器

Eukaryotic cells are packed with membrane-bound organelles, each with a specific job. Use the ‘city analogy’: the nucleus is city hall (stores DNA), mitochondria are power plants (generate ATP via respiration), and ribosomes are factories (protein synthesis). The rough endoplasmic reticulum is a factory floor with attached ribosomes.

真核细胞里挤满了有膜细胞器，各司其职。使用“城市类比法”：细胞核是市政厅（储存DNA），线粒体是发电厂（通过呼吸作用产生ATP），核糖体是工厂（合成蛋白质）。粗面内质网就是带有核糖体的工厂车间。

Remember the differences between prokaryotic and eukaryotic cells: ‘PRO’ means ‘before nucleus’ – prokaryotes have no true nucleus and lack membrane-bound organelles. Their DNA is circular and free in the cytoplasm.

记住原核细胞与真核细胞的区别：“PRO” 表示“细胞核出现之前”——原核生物没有真正的细胞核，也没有有膜细胞器。它们的DNA是环状的，游离在细胞质中。

In AS Biology, you’ll also encounter terms like magnification and resolution. Magnification is how many times larger an image is; resolution is the ability to distinguish between two separate points. An electron microscope has high resolution and magnification.

在 AS 生物学中，你还会遇到放大倍率和分辨率的术语。放大倍率是图像被放大的倍数；分辨率是区分两个独立点的能力。电子显微镜具有高分辨率和高放大倍率。

8. Genetics Glossary: Alleles, Genotype and Phenotype | 遗传学词汇：等位基因、基因型与表型

Genetics vocabulary is precise and heavily examined. An allele is a variant form of a gene. If the two alleles are the same, the organism is homozygous; if different, it is heterozygous. The genotype is the genetic makeup, while the phenotype is the observable characteristic.

遗传学词汇非常精确，也是考试重点。等位基因是基因的变体形式。如果两个等位基因相同，该生物是纯合的；如果不同，则是杂合的。基因型是遗传组成，表型则是可观察到的性状。

Dominant alleles mask recessive ones. Use the capital/lowercase rule: dominant alleles are shown with a capital letter (e.g., A) and recessive with lowercase (a). A monohybrid cross tracks one gene; a dihybrid cross tracks two.

显性等位基因会掩盖隐性等位基因。使用大写/小写规则：显性等位基因用大写字母表示（如 A），隐性等位基因用小写字母（a）。单基因杂交追踪一个基因，双基因杂交追踪两个基因。

Codominance is when both alleles are expressed equally (e.g., red+white → roan). Linkage refers to genes located on the same chromosome that tend to be inherited together. Remember ‘Code = Co-exist’ and ‘Linked = sitting on the same Link (chromosome)’.

共显性是指两个等位基因均等地表达（例如，红色+白色 → 沙色）。连锁是指位于同一条染色体上的基因往往一起遗传。记住“Code = Co-exist（共显性=共存）”和“Linked = sitting on the same Link（连锁=坐在同一条链（染色体）上）”。

9. Experimental Design Terms: Variables, Accuracy and Precision | 实验设计术语：变量、准确度与精确度

Across all three sciences, you must confidently use the terms independent variable (what you change), dependent variable (what you measure), and control variable (what you keep the same). Plot the independent variable on the x-axis and the dependent variable on the y-axis.

在所有三门科学中，你必须自信地使用自变量（你改变的量）、因变量（你测量的量）和控制变量（你保持不变的量）这些术语。将自变量标在 x 轴上，因变量标在 y 轴上。

Accuracy is how close a measurement is to the true value, while precision is the spread of repeated measurements. A dartboard analogy helps: accurate and precise → darts clustered around bullseye; precise but not accurate → darts clustered far from bullseye.

准确度是测量值与真实值的接近程度，精确度则是重复测量值的分散程度。飞镖盘类比很有用：准确且精确 → 飞镖集中在靶心周围；精确但不准确 → 飞镖集中但远离靶心。

Errors can be systematic (due to apparatus, affect all readings in the same direction) or random (unpredictable scatter). Using the mnemonic ‘Systematic = Same direction error’ can prevent mix-ups. Zero errors are a type of systematic error – check instruments before starting.

误差可以是系统误差（由仪器造成，使所有读数朝相同方向偏移）或随机误差（不可预测的散布）。使用助记法“Systematic = Same direction error（系统=同向误差）”可以避免混淆。零误差是一种系统误差——开始前要检查仪器。

10. Exam Command Words: Describe, Explain, Evaluate | 考试指令词：描述、解释、评价

In CCEA mark schemes, command words dictate exactly what the examiner wants. ‘Describe’ asks for characteristic features or a step-by-step account – no reasons needed. ‘Explain’ requires linking cause and effect using a ‘because’ or ‘therefore’ reasoning.

在 CCEA 的评分方案中，指令词精确地规定了考官的要求。“描述”要求写出特征或逐步陈述——不需要给出理由。“解释”则需要用“因为”或“因此”将因果联系起来进行推理。

‘Calculate’ means you must show a clear formula, substitution, and final answer with units. ‘Suggest’ invites you to apply scientific knowledge to a novel situation; there may be more than one acceptable answer.

“计算”意味着你必须写出清晰的公式、代入步骤和带单位的最终答案。“建议”邀请你将科学知识应用到新情境中；可能有一个以上的可接受答案。

‘Evaluate’ combines weighing up evidence, giving arguments for and against, and reaching a supported conclusion. Think of it as a judge in a courtroom. Use the structure: ‘A strength is … however a limitation is … Therefore I conclude …’.

“评价”结合了权衡证据、给出支持和反对的论据，并得出有依据的结论。可以把它想象成法庭上的法官。使用这样的结构：“一个优点是…，但局限性是…，因此我得出结论…”。

‘Compare’ asks for similarities and differences, so always use comparative words like ‘both … whereas …’ or ‘X is … but Y is …’. Avoid just giving two separate descriptions.

“比较”要求写出相似点和不同点，因此始终使用比较性词语，如“两者都…，而…”或“X是…，但Y是…”。避免只给出两个孤立的描述。

11. Scientific Units and Conversions: Kilo, Mega, Milli and More | 科学单位与换算：千、兆、毫等

Confusing prefixes like kilo (10³), mega (10⁶), milli (10⁻³) and micro (10⁻⁶) costs many marks each year. Remember the ladder: k h da (unit) d c m for going down from kilo to milli. For Giga (G, 10⁹) to pico (p, 10⁻¹²), a clear order of magnitude helps.

混淆诸如 kilo（10³）、mega（10⁶）、milli（10⁻³）和 micro（10⁻⁶）等前缀，每年都会导致很多失分。记住阶梯：k h da (单位) d c m 可以帮你从千到毫逐级下降。对于 Giga (G, 10⁹) 到 pico (p, 10⁻¹²)，清晰的量级顺序是有帮助的。

Use the mnemonic ‘Great Monarchs Keep Many Purple Crowns’ for Giga, Mega, Kilo, Milli, Micro, Nano, Pico. Another trick: 1 nanometre = 1 × 10⁻⁹ m, so the diameter of a DNA helix (2 nm) is roughly 2 × 10⁻⁹ m.

用 “Great Monarchs Keep Many Purple Crowns” 这个助记句来记住 Giga, Mega, Kilo, Milli, Micro, Nano, Pico。另一个技巧：1 纳米 = 1 × 10⁻⁹ 米，所以 DNA 双螺旋的直径（2 nm）大约是 2 × 10⁻⁹ 米。

In calculations, always convert to SI base units first: mass in kg, length in m, time in s, temperature in K. Setting up a table to list variable, value, and unit before starting reduces careless conversion errors.

在计算中，始终先转换为 SI 基本单位：质量用 kg，长度用 m，时间用 s，温度用 K。在开始解题前制作一个表格，列出变量、数值和单位，可以减少粗心的换算错误。

12. Quick-Fire Mnemonic Round-Up for All Sciences | 全学科快速助记法汇总

This final section collects memory hooks you can pin to your revision wall. For reactivity series, ‘Please Stop Calling Me A Zebra I Love Cute Squirrels’ (Potassium, Sodium, Calcium, Magnesium, Aluminium, Zinc, Iron, Lead, Copper, Silver).

最后一节汇集了你可以钉在复习墙上的记忆钩子。对于金属活动性顺序，“Please Stop Calling Me A Zebra I Love Cute Squirrels”（钾、钠、钙、镁、铝、锌、铁、铅、铜、银）。

In Biology, the hierarchy of classification: ‘King Philip Came Over For Good Soup’ (Kingdom, Phylum, Class, Order, Family, Genus, Species). For the stages of mitosis: ‘I Propose More Actually’ (Interphase, Prophase, Metaphase, Anaphase, Telophase).

在生物学中，分类层级：“King Philip Came Over For Good Soup”（界、门、纲、目、科、属、种）。有丝分裂的阶段：“I Propose More Actually”（间期、前期、中期、后期、末期）。

In Physics, electromagnetic spectrum order: ‘Rabbits Mate In Very Unusual eXpensive Gardens’ (Radio, Microwave, Infrared, Visible, Ultraviolet, X-ray, Gamma). Always note that visible light splits into Red, Orange, Yellow, Green, Blue, Indigo, Violet (ROYGBIV).

在物理学中，电磁波谱顺序：“Rabbits Mate In Very Unusual eXpensive Gardens”（无线电波、微波、红外线、可见光、紫外线、X射线、伽马射线）。始终注意可见光可分解为红、橙、黄、绿、蓝、靛、紫（ROYGBIV）。

Finally, for essential equations that form the backbone of Year 13, create a personalised formula card. Write each equation in both symbol and word form, then practise rewriting it from memory daily. Your brain will treat it like a familiar song lyric.

最后，对于构成 Year 13 主干知识的重要方程，制作一张个性化的公式卡。将每个方程式同时写成符号形式和文字形式，然后每天练习凭记忆默写。你的大脑会像对待熟悉的歌词一样记住它们。

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Year 13 CCEA Science: Quick Memorisation Guide for Key Terminology | Year 13 CCEA 科学：核心词汇术语速记指南