📚 Summer Prep & Bridging Course for Year 7 SQA Science | Year 7 SQA 科学暑期预习与衔接课程
Moving into Year 7 Science under the Scottish Curriculum for Excellence is a big step. This bridging course is designed to help you revisit key primary ideas and introduce the first topics you will meet in S1, so you can walk into the laboratory with confidence and curiosity.
进入苏格兰卓越课程体系下的 Year 7 科学学习是一个重要的转变。这门衔接课程旨在帮助你回顾小学阶段的核心概念，并提前接触 S1 将要学习的内容，让你能够带着自信与好奇心走进实验室。
1. Why Summer Prep Matters | 为何暑期预习至关重要
Primary science gives you a wonderful foundation, but secondary science moves faster and goes deeper. A short summer review prevents knowledge from fading over the long holiday.
小学科学为你打下了很好的基础，但中学科学的节奏更快、内容更深。一个简短的暑期复习能够防止知识在长假中被遗忘。
When you recognise familiar words like 'cell' or 'force' in your first lessons, you feel less anxious and can focus on the new details the teacher introduces.
当你在第一堂课上认出“细胞”或“力”这类熟悉的词语时，你会感到不那么紧张，从而能够专心聆听老师介绍的新细节。
Prep work also lets you practise reading scientific texts and writing short explanations, skills that are used every day in SQA courses.
预习还能让你练习阅读科学文本和撰写简短解释，这些技能在 SQA 课程中每天都会用到。
A relaxed, ten-minute-a-day approach over the summer is much more effective than trying to learn everything in the last week of the holiday.
暑假里每天放松地学十分钟，比在假期最后一周试图突击所有内容要有效得多。
2. Scientific Inquiry Skills | 科学探究技能
Every scientific investigation starts with a clear question. Learning to turn your curiosity into a testable question is the first skill you will practise.
每一次科学探究都始于一个清晰的问题。学会把你的好奇心转变成一个可验证的问题，是你将要练习的第一项技能。
You must learn how to write a hypothesis — a prediction that can be tested by an experiment. A good hypothesis often uses the pattern 'If … then … because …'.
你必须学会如何撰写假设——即一条可以通过实验来检验的预测。一个好的假设常常使用“如果……那么……因为……”的模式。
Identifying variables is vital. The independent variable is what you change, the dependent variable is what you measure, and control variables must be kept the same to make the test fair.
识别变量至关重要。自变量是你改变的因素，因变量是你测量的结果，而控制变量必须保持不变，以保证测试的公平性。
Data is recorded in clear tables and then displayed in graphs. In Year 7, you will draw bar charts and simple line graphs, always labelling axes and including units.
数据被记录在清晰的表格中，然后以图表形式呈现。在 Year 7，你将绘制条形图和简单的折线图，并始终标注坐标轴和单位。
A conclusion must refer back to the hypothesis and be supported by the evidence you collected. It is acceptable to say your results did not match your prediction, as long as you explain why.
结论必须回顾假设，并得到你所收集证据的支持。如果你的结果与预测不符，这是可以接受的，只要你能解释原因。
3. Cells: The Building Blocks of Life | 细胞：生命的基本单位
All living organisms are made of cells. The two most important types you will study first are animal cells and plant cells.
所有生物体都由细胞构成。你将首先学习的两种最重要的类型是动物细胞和植物细胞。
Animal cells contain a nucleus, cytoplasm, cell membrane and mitochondria. The nucleus controls the cell and stores genetic material.
动物细胞包含细胞核、细胞质、细胞膜和线粒体。细胞核控制细胞活动并储存遗传物质。
Plant cells have the same basic parts plus a rigid cell wall, a large permanent vacuole and chloroplasts that trap light energy for photosynthesis.
植物细胞除了拥有相同的基本结构外，还有坚硬的细胞壁、一个巨大的中央液泡以及能够捕获光能进行光合作用的叶绿体。
You need to be able to use a microscope safely. Start by focusing on the lowest power objective lens and always use a coverslip to protect the lens.
你需要能够安全地使用显微镜。开始时使用最低倍率的物镜进行对焦，并始终使用盖玻片来保护镜头。
A useful comparison is shown in this table of common cell structures:
下面这个常见细胞结构对比表格会很有帮助：
| Structure | Animal Cell | Plant Cell |
|---|---|---|
| Nucleus | Yes | Yes |
| Cell membrane | Yes | Yes |
| Cell wall | No | Yes |
| Chloroplasts | No | Yes |
| Large vacuole | No | Yes |
Some organisms, such as bacteria, are single-celled. They are much smaller and have no true nucleus, making them prokaryotes, while animal and plant cells are eukaryotes.
有些生物，如细菌，是单细胞的。它们要小得多，并且没有真正的细胞核，属于原核生物，而动物和植物细胞则是真核生物。
4. States of Matter and the Particle Model | 物质的状态与粒子模型
All matter is made of tiny particles that are constantly moving. The way these particles are arranged determines whether a substance is a solid, a liquid or a gas.
所有物质都由不断运动着的微小粒子构成。这些粒子的排列方式决定了该物质是固体、液体还是气体。
In solids, particles are held tightly in a regular pattern. They vibrate in fixed positions, which gives solids a definite shape and volume.
在固体中，粒子被紧密地束缚在规则的排列中。它们在固定的位置上振动，这使得固体具有确定的形状和体积。
Liquid particles are still close together but can slide past each other. This allows liquids to flow and take the shape of the bottom of their container while keeping a fixed volume.
液体的粒子仍然紧密排列，但可以相互滑动。这使得液体能够流动并呈现容器底部的形状，同时保持固定的体积。
Gas particles are far apart and move rapidly in all directions. Gases have no fixed shape or volume and will spread out to fill any space they are in.
气体的粒子相距很远，并且快速地向各个方向运动。气体没有固定的形状或体积，会扩散并充满它们所在的任何空间。
Changes of state, such as melting, freezing, boiling and condensing, can be explained by adding or removing heat energy, which changes the movement of the particles.
状态的变化，如熔化、凝固、沸腾和冷凝，可以通过加入或移除热能来解释，这会改变粒子的运动方式。
Diffusion is the movement of particles from an area of higher concentration to an area of lower concentration. You can observe this by placing a drop of food colouring in water.
扩散是粒子从高浓度区域向低浓度区域运动的过程。你可以通过将一滴食用色素滴入水中来观察这一现象。
5. Introduction to Forces and Motion | 力与运动简介
A force is a push or a pull that can change the speed, direction or shape of an object. Forces are measured in newtons using a force meter.
力是一种推或拉的作用，它可以改变物体的速度、方向或形状。力使用测力计来测量，单位是牛顿。
When forces on an object are balanced, the object stays at rest or continues moving at a steady speed in a straight line. Unbalanced forces cause acceleration or deceleration.
当作用在一个物体上的力达到平衡时，物体会保持静止或继续以恒定速度沿直线运动。不平衡的力则会导致加速或减速。
Friction is a force that opposes motion. It can be useful, like when it helps you walk without slipping, or a problem, like when it wears down moving parts in an engine.
摩擦力是一种阻碍运动的力。它可能是有用的，例如帮助你走路时不滑倒；也可能带来麻烦，例如磨损发动机中的运动部件。
Gravity is the force of attraction between any two objects with mass. On Earth, gravity pulls objects towards the centre of the planet, giving them weight.
重力是任何两个有质量的物体之间的吸引力。在地球上，重力将物体拉向地心，使它们具有重量。
The difference between mass and weight often confuses pupils. Mass is the amount of matter in an object and is measured in kilograms, while weight is a force and is measured in newtons.
质量和重量的区别常常让学生困惑。质量是物体所含物质的多少，以千克为单位；而重量是一种力，以牛顿为单位。
Speed can be calculated using the formula that relates distance and time:
速度可以用距离和时间之间的关系公式来计算：
speed = distance ÷ time
Make sure your units are consistent, for example metres per second (m/s) if you measure distance in metres and time in seconds.
要确保单位一致，例如如果你以米为单位测量距离、以秒为单位测量时间，那么速度单位就是米每秒 (m/s)。
6. Forms of Energy and Energy Transfers | 能量形式与转化
Energy is not a substance; it is the ability to do work. In Year 7, you will learn to identify different energy stores and how energy is transferred from one store to another.
能量不是一种物质，而是做功的能力。在 Year 7，你将学会识别不同的能量储存方式，以及能量如何从一种储存转移到另一种储存。
The main energy stores include kinetic (movement), thermal (heat), chemical, gravitational potential, elastic potential and nuclear energy.
主要的能量储存包括动能（运动）、热能、化学能、重力势能、弹性势能和核能。
Energy can be transferred by forces doing work, by heating, by electric currents or by waves such as light and sound. The total amount of energy in a system is always conserved.
能量可以通过力做功、加热、电流或波（如光波和声波）来传递。一个系统中的总能量总是守恒的。
Renewable energy sources, such as solar, wind and hydro power, are important topics in SQA Science. They can be replenished and have less impact on climate change than fossil fuels.
太阳能、风能和水力等可再生能源是 SQA 科学中的重要主题。它们可以再生，并且对气候变化的影响比化石燃料小。
A simple way to see energy transfer in action is to describe a hair dryer. Electrical energy enters the dryer and is transferred to the kinetic store of the fan and the thermal store of the heater.
观察能量传递的一个简单例子是描述吹风机。电能进入吹风机，转化为风扇的动能储存和加热器的热能储存。
When drawing energy transfer diagrams, always use an arrow to show the direction and label the stores clearly. Your teacher will value neat diagrams with a ruler.
在绘制能量传递示意图时，始终用箭头标明方向，并清晰地标注能量储存。老师会欣赏用尺子画出的整洁图表。
7. Elements, Compounds and Mixtures | 元素、化合物与混合物
All substances are made from about one hundred different types of atom. An element is a pure substance made of only one type of atom, like oxygen (O) or iron (Fe).
所有物质都由大约一百种不同类型的原子构成。元素是由同一种原子组成的纯净物，例如氧 (O) 或铁 (Fe)。
The periodic table arranges all known elements. Each element has a symbol, and you will be expected to recognise the symbols for common elements such as hydrogen, carbon and sodium.
元素周期表排列了所有已知的元素。每种元素都有一个符号，你将需要认出常见元素的符号，例如氢、碳和钠。
A compound is formed when two or more different elements chemically bond together. Water (H₂O) and carbon dioxide (CO₂) are compounds with properties very different from the elements they contain.
化合物是由两种或两种以上不同元素通过化学键结合形成的物质。水 (H₂O) 和二氧化碳 (CO₂) 都是化合物，它们的性质与组成它们的元素截然不同。
A mixture contains two or more substances that are not chemically joined. Each substance keeps its own properties, and mixtures can be separated by physical methods like filtration or evaporation.
混合物包含两种或两种以上没有通过化学键结合的物质。每种物质保持自身特性，混合物可以通过过滤或蒸发等物理方法进行分离。
You will learn to represent simple chemical reactions using word equations. A word equation shows the reactants on the left, an arrow, and the products on the right.
你将学习用文字方程式来表示简单的化学反应。文字方程式左边是反应物，中间是箭头，右边是生成物。
esium + oxygen → magnesium oxide. This is a useful model before you meet symbol equations.
例如，镁与氧气的反应可以写成：镁 + 氧气 → 氧化镁。在你学习符号方程式之前，这是一个非常实用的模型。
8. Earth Science and Sustainability | 地球科学与可持续发展
The Earth is made up of several layers: the crust, the mantle, the outer core and the inner core. The crust is the thin, rocky outer layer where we live.
地球由若干层构成：地壳、地幔、外核和内核。地壳是我们所生活的薄薄的岩石外层。
Rocks are classified into three main types based on how they are formed. Igneous rocks come from cooled magma, sedimentary rocks are made of compressed layers, and metamorphic rocks are changed by heat and pressure.
根据形成方式，岩石被分为三大类。火成岩来自冷却的岩浆，沉积岩由被压实的岩层构成，变质岩则是由热与压力作用改变而来。
The rock cycle shows how rocks can change from one type to another over millions of years. This continuous process involves weathering, erosion, melting and recrystallisation.
岩石循环显示了岩石在数百万年间如何从一种类型转变为另一种。这个持续的过程涉及风化、侵蚀、熔融和重结晶。
Human activities, particularly the burning of fossil fuels, release carbon dioxide which traps heat in the atmosphere. This enhanced greenhouse effect is linked to global warming.
人类活动，尤其是化石燃料的燃烧，会释放二氧化碳，这些二氧化碳将热量困在大气中。这种增强的温室效应与全球变暖有关。
Sustainability means meeting our own needs without damaging the ability of future generations to meet their needs. Simple actions like recycling and saving electricity make a difference.
可持续发展意味着在满足我们自身需求的同时，不损害后代满足他们需求的能力。诸如回收利用和节约用电等简单的行动就能带来改变。
9. Building a Strong Science Vocabulary | 积累科学词汇
Science has a special language full of precise words. Creating a personal glossary of terms like 'variable', 'diffusion' and 'respiration' will help you read questions accurately.
科学有一种充满精确词汇的特殊语言。给自己创建一个包含“变量”、“扩散”和“呼吸作用”等术语的个人词汇表，将有助于你准确地阅读题目。
You should practise writing complete sentences that include scientific keywords. Instead of writing 'it got bigger', try describing that 'the plant cell swelled as water entered the vacuole'.
你应该练习书写包含科学关键词的完整句子。不要写“它变大了”，试着描述为“随着水分进入液泡，植物细胞膨胀了”。
Prefixes and suffixes can act as clues. For example, 'photo' means light and 'synthesis' means to make, so photosynthesis literally means making using light.
前缀和后缀可以起到线索作用。例如，“photo”意为光，“synthesis”意为合成，因此 “photosynthesis” 的字面意思就是用光来制造物质。
Listen carefully to how your teacher pronounces new words and repeat them aloud. Saying 'mitochondrion' correctly the first time makes it much easier to remember.
注意听老师如何念新词，并大声跟读。第一次就把 “mitochondrion” 念对了，记起来就会容易得多。
10. Building Confidence Before the Term Starts | 开学前建立信心
Set a small, achievable goal for your first week of secondary school, such as asking one question in a lesson or introducing yourself to a new lab partner. These small wins build momentum.
为你中学的第一周设定一个小的、可实现的目标，例如在课堂上提出一个问题，或者向新的实验搭档介绍自己。这些小小的成功会为你积累动力。
Organise your equipment in advance. A scientific calculator, coloured pencils, a ruler and a glue stick are tools you will use almost every day in science.
提前整理好你的学习用品。一台科学计算器、彩色铅笔、一把尺子和一支胶棒，是你在科学课上几乎每天都会用到的工具。
Remember that everyone is new to this course. Your teacher expects you to make mistakes, and asking for help is a sign of strength, not weakness.
请记住，每个人都是这门课的新手。老师预料到你会犯错，而请求帮助是一种力量的表现，而不是软弱。
Lastly, enjoy the subject. Science explains the world around you, from why the sky is blue to how your body fights off a cold. Let your natural curiosity be your guide.
最后，享受这门学科。科学解释了你身边的世界，从天空为什么是蓝色的，到你的身体如何抵抗感冒。让你天生的好奇心成为你的向导。
Published by TutorHao | Science Revision Series | aleveler.com
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