📚 AQA Year 9 Science: Case Study Practical Exercises | AQA 九年级科学：案例分析实战演练
Case studies are an essential part of the AQA Year 9 science curriculum, helping you to apply scientific knowledge and skills to real-world scenarios. They allow you to practise working scientifically, from planning investigations to analysing data and evaluating evidence.
案例分析是 AQA 九年级科学课程的重要组成部分，能帮助你将科学知识和技能应用于现实情境。它们让你练习科学探究的全过程，从设计调查、分析数据到评估证据。
In this article, we will walk through three practical case studies covering biology, physics and chemistry. You will learn how to identify variables, interpret graphs, spot anomalies and draw valid conclusions — key skills for your end-of-topic tests and future GCSE studies.
在本文中，我们将通过三个实用案例研究，涵盖生物、物理和化学领域。你将学会如何识别变量、解读图表、发现异常值并得出有效结论——这些是单元测验和未来 GCSE 学习的关键技能。
1. What is a Scientific Case Study? | 什么是科学案例研究？
A scientific case study is a detailed account of a particular investigation or phenomenon, often including experimental data and background theory. In AQA science, you are expected to analyse such accounts, identify strengths and weaknesses, and suggest improvements.
科学案例研究是对特定探究或现象的详细描述，通常包括实验数据和背景理论。在 AQA 科学中，你需要分析这类案例，指出其优势与不足，并提出改进建议。
For example, a case study might present results from an experiment testing how light intensity affects the rate of photosynthesis. Your job is to interpret the data, assess whether the method was fair, and relate findings to scientific principles.
例如，一个案例研究可能展示一个实验的结果，测试光照强度如何影响光合作用速率。你的任务是解读数据，评价该方法是否公平，并将发现与科学原理联系起来。
2. The Case Study Analysis Framework | 案例分析框架
To analyse a case study effectively, use the following steps: Read the scenario carefully; identify the independent, dependent and control variables; examine the data presentation (tables or graphs); calculate averages if needed; identify any anomalous results; describe patterns and relationships; use scientific knowledge to explain the findings; evaluate the method and suggest improvements.
要有效分析案例研究，可以使用以下步骤：仔细阅读情境；确定自变量、因变量和控制变量；检查数据呈现方式（表格或图表）；必要时计算平均值；找出任何异常结果；描述模式和关系；运用科学知识解释发现；评价实验方法并提出改进建议。
This framework ensures you do not miss any marks when answering exam-style questions. Always support your statements with evidence from the data.
这个框架能确保你在回答考试类题目时不遗漏任何得分点。始终要用数据中的证据来支持你的陈述。
3. Case Study 1: Investigating Plant Growth | 案例一：探究植物生长
Scenario: A student wanted to find out whether different colours of light affect the height of bean seedlings. She placed 5 seedlings under a red lamp, 5 under a blue lamp, and 5 under a white lamp. All other conditions were kept the same. After 10 days, she measured their heights in cm. The results are shown below.
| Light colour | Seedling 1 | Seedling 2 | Seedling 3 | Seedling 4 | Seedling 5 |
|---|---|---|---|---|---|
| Red | 8.2 | 7.9 | 15.6 | 8.4 | 8.1 |
| Blue | 9.5 | 9.2 | 9.6 | 9.1 | 9.4 |
| White | 10.8 | 11.0 | 广告 / Sponsored 牛津IGCSE化学国际考试教材课本 AQA International GCSE Chemistry for Oxfo… 化学 备考教辅 · 正版现货 · 与本文内容相关 查看详情 / View on Taobao参考价 ¥385.0
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