Year 7 Edexcel Biology: Practical Assessment Key Points | Edexcel 7年级生物实验/实践考核要点

📚 Year 7 Edexcel Biology: Practical Assessment Key Points | Edexcel 7年级生物实验/实践考核要点

Practical work is a vital part of Year 7 Edexcel Biology. It helps you develop scientific skills, understand key concepts through hands-on activities, and prepare for assessments that test your ability to plan, observe, record and evaluate. This guide covers the essential practical skills and common experiments assessed at this level, focusing on both technique and the thinking behind fair-testing.

实验工作是Edexcel 7年级生物的重要组成部分。它能帮助你发展科学技能，通过动手操作理解关键概念，并为考核做好准备，这些考核检验你计划、观察、记录和评估的能力。本指南涵盖本级评估所要求的基本实验技能和常见实验，重点在于规范操作和公平测试的思维。

1. Laboratory Safety and Preparation | 实验室安全与准备

Safety is the first and non‑negotiable rule in every biology practical. Always wear a lab coat to protect your clothing and skin, and safety goggles to shield your eyes from splashes. Long hair must be tied back, and any loose clothing or dangling jewellery should be secured or removed. In a Year 7 lab, listen carefully to the teacher’s instructions and never run, push others, or handle equipment without permission.

安全是每堂生物实验课的首要且不可违背的准则。务必穿好实验服以保护衣物和皮肤，并戴好护目镜防止液体飞溅。长发必须束起，宽松衣物或悬挂的饰品也应扎紧或取下。在7年级实验室里，务必认真听取老师的指令，严禁奔跑、推搡或未经允许擅自动用器材。

Know the exact location of the fire extinguisher, fire blanket, eyewash station and first‑aid kit. If you spill any chemical or break glassware, inform the teacher immediately. Never eat, drink or taste anything in the lab, and always wash your hands with soap after handling biological materials such as plant specimens or enzymes.

清楚知道灭火器、消防毯、洗眼器和急救箱的具体位置。若溅出任何化学品或打碎玻璃器皿，立刻报告老师。实验室内绝不饮食或品尝任何物品，接触植物标本或酶等生物材料后，务必用肥皂洗手。

2. Using a Light Microscope | 使用光学显微镜

The light microscope is a Year 7 staple for exploring cells and tiny organisms. Begin by placing your prepared slide on the stage and securing it with the stage clips. Always start with the lowest‑power objective lens (usually the 4× or 10×) to give the widest field of view. While looking from the side, turn the coarse focus knob to raise the stage until the slide is just a few millimetres from the lens – never let the lens touch the slide.

光学显微镜是7年级探索细胞和微生物的基本工具。先把制好的玻片放在载物台上，用压片夹固定好。务必从最低倍物镜（通常是4×或10×）开始，以获得最宽的视野。从侧面看着

Published by TutorHao | Year 7 Biology Revision Series | aleveler.com

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