📚 Year 8 WJEC Science: Vocabulary & Terminology Quick Memorisation Guide | Year 8 WJEC 科学：词汇术语速记指南
Mastering the language of science is the first step to becoming a confident young scientist. In Year 8 WJEC Science, you will encounter a wide range of new terms across biology, chemistry and physics. This guide breaks down essential vocabulary into manageable sections and supplies clever memory tricks, visual hooks and word origins to help these terms stick permanently in your mind. Use it alongside your class notes and revision to build a rock‑solid foundation for GCSE success.
掌握科学语言是成为自信小科学家的第一步。在 Year 8 WJEC 科学课中，你会遇到跨生物、化学和物理的大量新术语。本指南将核心词汇分成易于消化的小节，并提供巧妙的记忆技巧、视觉联想和词根提示，让这些术语牢牢印在你的脑海里。配合课堂笔记和复习使用，为 GCSE 的成功打下坚实基础。
1. Cell Biology Terms | 细胞生物学术语
Cells are the basic building blocks of life, and their vocabulary can be mastered with simple analogies. Think of a cell as a miniature factory or a city, where each part has a specific job.
细胞是生命的基本构造单元，其术语可以通过简单的类比来掌握。把细胞想象成一个微型工厂或一座城市，每个部分都有特定工作。
| English Term | Quick Definition | 中文速记 |
|---|---|---|
| Cell membrane | Partially permeable barrier controlling entry and exit of substances | 细胞膜：像“保安”一样控制进出 |
| Nucleus | Contains genetic material (DNA) and controls cell activities | 细胞核：细胞的大脑或指挥中心 |
| Cytoplasm | Jelly‑like substance where chemical reactions occur | 细胞质：果冻状的“工地”，反应在此发生 |
| Mitochondria | Organelles that release energy through respiration | 线粒体：细胞的“发电站” |
| Chloroplast | Contains chlorophyll; site of photosynthesis in plant cells | 叶绿体：植物细胞的“太阳能厨房” |
| Cell wall | Rigid outer layer of plant cells made of cellulose for support | 细胞壁：植物细胞的坚固“外墙” |
| Vacuole | Fluid‑filled sac storing water and nutrients; large in plants | 液泡：细胞的“储物罐”，植物中特别大 |
To remember mitochondria, link the 'mighty' sound to the idea of mighty power stations pumping out energy. For chloroplast, picture a green leaf containing tiny solar panels that capture sunlight to make food.
记忆线粒体（mitochondria）时，联想“mighty”（强大的）发音，好似强大的发电站不断输出能量。叶绿体（chloroplast）则想象绿叶中有微型太阳能板，捕获阳光制造食物。
2. Microscopy and Measurement | 显微镜与测量术语
Working with microscopes requires precise vocabulary. Many terms come from Latin or Greek roots, and recognising these roots will unlock meanings across the whole science curriculum.
使用显微镜需要精确的词汇。许多术语源于拉丁语或希腊语词根，识别这些词根能帮助你理解整个科学课程中的含义。
| Term | Meaning | 中文解释与速记 |
|---|---|---|
| Magnification | How many times larger an image appears compared to the real object | 放大倍数；词根 'magni' 表示“大” |
| Resolution | Ability to distinguish between two close points as separate | 分辨率；分辨细节的能力 |
| Objective lens | Lens closest to the specimen; usually x4, x10, x40 | 物镜；靠近标本的镜头 |
| Eyepiece lens | Lens you look through; usually x10 | 目镜；你眼睛贴近的镜头 |
| Micrometre (µm) | One thousandth of a millimetre (10⁻⁶ m) | 微米；1 µm = 0.001 mm |
| Field of view | The circle of light you see through the microscope | 视野；显微镜下看到的圆形光亮区域 |
Think of a detective with a magnifying glass: 'magnification' makes the clue bigger, but 'resolution' is what reveals the fine fingerprint lines. When calculating total magnification, multiply eyepiece by objective lens – just like stacking two magnifying glasses.
想象侦探拿着放大镜：“magnification”把线索变大，“resolution”则是分辨出细微指纹线条的能力。计算总放大倍数时，目镜倍数乘以物镜倍数，就像叠放两个放大镜。
3. Forces and Motion | 力与运动词汇
Forces shape every movement around us. The vocabulary here often appears in everyday language, but in science each word has an exact meaning. Mastering them will stop you getting pulled in the wrong direction during exams.
力塑造我们周围的每一次运动。这里的词汇常出现在日常用语中，但在科学里每个词都有精确含义。掌握它们能避免在考试中被“带偏”。
| Term | Definition | 中文速记 |
|---|---|---|
| Force | A push or pull; measured in newtons (N) | 力：推或拉，单位牛顿 |
| Friction | Force opposing motion between two surfaces | 摩擦力：阻碍相对运动的力 |
| Gravity | Attractive force between all objects with mass | 重力：物体间相互吸引的力 |
| Mass | Amount of matter in an object; measured in kg, does not change with location | 质量：物质的量，单位千克，不随位置变化 |
| Weight | Force of gravity on a mass; measured in newtons; changes with gravity | 重量：重力作用在质量上的力，随引力变化 |
| Speed | Distance travelled per unit time (m/s) | 速度：单位时间内的距离 |
| Acceleration | Rate of change of velocity (m/s²) | 加速度：速度变化的快慢 |
| Resultant force | Overall force acting on an object after forces are combined | 合力：所有力综合后的总力 |
A classic confusion is mass versus weight. Mass is like the amount of dough in a pizza – it never changes. Weight is like how heavy that pizza feels on different planets; on the Moon it would weigh less because gravity is weaker, but the mass stays the same. Use the phrase 'mass is the stuff, weight is the pull' to lock it in.
经典的混淆点是质量与重量。质量好比面团的总量——永不改变。重量则像这块面团在不同星球上称出来的数值；月球上因引力小所以重量更轻，但质量不变。记住“质量是物质多少，重量是引力大小”就能牢固区分。
4. Energy Forms and Transfers | 能量形式与传递术语
Energy is never created or destroyed, only transferred. Being able to name energy stores and pathways is essential for explaining any scientific phenomenon, from a rollercoaster to a light bulb.
能量既不会凭空产生也不会消失，只能被传递。能够说出能量储存形式与传递途径，对于解释任何科学现象——从过山车到灯泡——都至关重要。
| Term | Explanation | 中文速记 |
|---|---|---|
| Kinetic energy | Energy of movement | 动能：运动的能量 |
| Gravitational potential energy (GPE) | Energy stored due to height above ground | 重力势能：因高度而储存的能量 |
| Chemical energy | Energy stored in bonds of chemical compounds (food, fuel) | 化学能：储存在化学键中的能量 |
| Thermal energy | Energy related to temperature; internal heat | 热能：与温度相关的能量 |
| Elastic potential energy | Energy stored in stretched or compressed objects | 弹性势能：形变物体中储存的能量 |
| Sankey diagram | Arrow diagram showing energy transfers, with arrow width proportional to energy amount | 桑基图：箭头粗细表示能量多少的流向图 |
at the highest point GPE is maximum; at the lowest point kinetic energy peaks. The phrase 'high up = high GPE' nt reminder. For Sankey diagrams, imagine a river splitting into useful and wasted streams – thicker arrows mean more energy in that path.
想象荡秋千的孩子：最高点重力势能最大，最低点动能最大。“高即高位能”是个快捷提醒。对于桑基图，想象一条河流分成有用流和浪费流——箭头越粗代表该路径能量越多。
5. Particle Theory of Matter | 物质粒子理论
Everything you can touch is made of tiny particles. The vocabulary of particle theory explains melting, boiling, diffusion and pressure. Keep the 'particle dance' in mind – particles in solids vibrate on the spot, in liquids they slide, and in gases they zoom freely.
你能触摸的一切都由微小粒子构成。粒子理论词汇解释熔化、沸腾、扩散和压力。记住“粒子之舞”——固体粒子原地振动，液体粒子滑动，气体粒子自由飞窜。
| Term | Description | 中文速记 |
|---|---|---|
| Solid | Particles tightly packed in a regular pattern; vibrate in fixed positions | 固体：粒子紧密规则排列，原地振动 |
| Liquid | Particles close but can move past each other; take shape of container | 液体：粒子紧密但可相对移动，随容器变形 |
| Gas | Particles far apart, moving quickly in all directions; fills available space | 气体：粒子间距大，快速自由运动 |
| Diffusion | Net movement of particles from high concentration to low concentration | 扩散：粒子从高浓度区域向低浓度区域净移动 |
| Pressure | Caused by particles colliding with the walls of a container | 压强：粒子撞击容器壁产生 |
Diffusion is like a drop of food colouring spreading through a glass of water until it is evenly mixed. The particles move randomly, but overall they travel from where they are crowded to where they are scarce. Saying 'diffusion – from dense to disperse' helps cement the concept.
扩散就像一滴食用色素在一杯水中散开直到均匀混合。粒子随机运动，但总体从密集处移向稀疏处。口诀“扩散——从密集到分散”有助于巩固这一概念。
6. Elements, Compounds and Mixtures | 元素、化合物与混合物
These three words build the entire language of chemistry. Confusing them is one of the most common mistakes in Year 8, but once you lock in the differences you will feel like a real chemist.
这三个词构建了整个化学语言。混淆它们是 Year 8 最常见的错误之一，但一旦锁定区别，你会感觉自己像个真正的化学家。
| Term | Definition | 中文速记与示例 |
|---|---|---|
| Atom | Smallest particle of an element that can take part in chemical reactions | 原子：元素参加化学反应的最小粒子 |
| Element | Substance made of only one type of atom; cannot be broken down chemically | 元素：只含一种原子，如铁(Fe)、氧(O₂) |
| Compound | Substance made of two or more different elements chemically bonded in fixed proportions | 化合物：不同元素通过化学键结合，如水(H₂O)、二氧化碳(CO₂) |
| Mixture | Two or more substances not chemically joined; can be separated by physical means | 混合物：未化学结合，可用物理方法分离，如空气、盐水 |
| Molecule | Two or more atoms chemically bonded together; can be the same element or different | 分子：两个或更多原子键合，可以是同种原子如O₂ |
Think of building blocks: elements are like single‑ . Compounds are different coloured bricks glued permanently into a set pattern, like a red‑and‑ brick house. Mixtures are a bucket of loose bricks you can pick apart by hand. The phrase 'bonded = compound, blended = mixture' is a quick mental snapshot.
想象积木：元素就像单一颜色的积木块（全部相同）。化合物像是不同颜色积木用胶水永久粘成固定造型，如红白砖屋。混合物则是一桶松散的积木，你可以用手把它们分开。口诀“胶粘的=化合物，搅拌的=混合物”能快速帮你回想。
7. Chemical Reactions Terminology | 化学反应术语
Published by TutorHao | Year 8 Science Revision Series | aleveler.com
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