Year 9 CAIE Biology Practical Assessment Key Points | 九年级 CAIE 生物实验考核要点

📚 Year 9 CAIE Biology Practical Assessment Key Points | 九年级 CAIE 生物实验考核要点

Practical assessments in Year 9 CAIE Biology test your ability to work safely in a laboratory, handle equipment correctly, make accurate observations, record and present data, and evaluate your experiments. This guide covers the essential practical skills and common investigations you must be familiar with, helping you prepare for Checkpoint or school-based practical exams.

九年级 CAIE 生物的实验考核测试你在实验室中安全操作、正确使用设备、准确观察、记录和呈现数据以及评价实验的能力。本指南涵盖了你必须熟悉的基本实验技能和常见探究活动，帮助你为 Checkpoint 或校内实验考试做好准备。

1. Laboratory Safety and Good Practice | 实验室安全与良好规范

Always wear safety goggles and a lab coat when handling chemicals, biological specimens or heating substances.

在处理化学品、生物样本或加热物质时，务必佩戴护目镜和实验服。

Tie back long hair and remove loose clothing or hanging jewellery to avoid catching fire or knocking over equipment.

束起长发，取下宽松衣物或悬垂的首饰，以免着火或碰倒仪器。

Never eat, drink or taste anything in the laboratory. Wash your hands with soap and water after completing practical work.

实验室里禁止饮食或品尝任何东西。完成实验操作后，用肥皂和水洗手。

When heating liquids in a test tube, point the open end away from yourself and others, and use a water bath or a Bunsen burner with the correct flame.

在试管中加热液体时，管口应远离自己和他人，并使用水浴或本生灯的正确火焰。

Report any breakages or spills immediately. Dispose of biological waste according to your teacher’s instructions.

如有破损或溅洒，应立即报告。按照老师的要求处理生物废弃物。

2. Using a Light Microscope | 使用光学显微镜

Start with the lowest-power objective lens and use the coarse focus knob to bring the stage close to the lens, viewing from the side to avoid crushing the slide.

先从最低倍物镜开始，使用粗调焦旋钮使载物台靠近镜头，从侧面观察，以免压

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