IGCSE Chemistry Practical Exam Requirements and Preparation Guide | IGCSE化学实验考试要求与备考指南

📚 IGCSE Chemistry Practical Exam Requirements and Preparation Guide | IGCSE化学实验考试要求与备考指南

The practical component is a compulsory part of IGCSE Chemistry. Whether you take Paper 5 (the school-based practical test) or Paper 6 (the Alternative to Practical written paper), this component contributes about 20% of your final grade and often decides the difference between an A and an A*. Examiners are not only looking for a final number — they want to see how you record data, use apparatus, draw conclusions and evaluate methods.

实验部分是 IGCSE 化学的必修模块。无论你参加 Paper 5（学校实验室操作考试）还是 Paper 6（实验替代笔试），该部分都占总成绩约 20%，往往是决定 A 与 A* 的关键。考官不仅关注最终结果，更关注你如何记录数据、使用仪器、得出结论以及评价实验方法。

1. Exam Paper Structure and Assessment Objectives | 试卷结构与考查目标

Paper 5 is a practical test taken in a laboratory, during which you carry out experiments under supervision. Paper 6 is a written paper that asks questions about experimental situations, so it tests the same skills without requiring you to handle real apparatus. Both papers are set by the exam board, marked externally, and contribute equally to your final grade.

Paper 5 是在实验室中进行的实际操作考试，你需要在监考下完成实验；Paper 6 是笔试，围绕给定的实验情境回答问题，考查相同的能力但不需要实际操作仪器。两份试卷均由考试局统一命题和评分，对最终成绩的权重相同。

The six core skills assessed are: safely handling apparatus; making and recording observations; constructing tables and graphs; interpreting results and drawing conclusions; identifying limitations and suggesting improvements; and planning a simple investigation. Knowing these skills helps you focus your revision on what actually earns marks.

六项核心考查能力为：安全操作仪器；观察并记录现象；设计表格与绘制图线；解释结果并得出结论；识别实验局限并提出改进；设计简单的探究方案。明确这些考查目标，复习时才能把精力放在真正得分的地方。

The written alternative paper is more common in many international centres, but the revision advice in this guide applies equally to both papers.

许多国际学校选择的是笔试替代卷，但本指南中的备考建议对两份试卷同样适用。

2. Safety Rules and Laboratory Equipment | 安全规则与实验器材

Safety questions appear directly in the exam. You should be able to recognise hazard symbols and state the appropriate precaution for each one. The most commonly tested symbols include flammable, toxic, corrosive, irritant and harmful.

安全类题目会直接出现在试卷中。你需要能够识别

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