题型:阅读选择 题类: 难易度:普通
广东省广州市绿翠现代实验学校2024-2025学年九年级上学期10月月考英语试题
Lab Safety Rules Science labs offer great opportunities for learning, teaching, and research. They also pose hazards that require proper safety precautions. Stay safe when conducting your labs by following these guidelines. |
Dress appropriately Tie back long hair, and wear suitable gloves, googles, and other protective equipment. | Proper supervision Don't perform lab experiments without instructor supervision(unless given permission to do so). | ||||
| Know location of emergency numbers & safety equipment Know the location of safety equipment and emergency phone numbers (such as poison control) so you can access them quickly if necessary. | |||||
No food Don't eat or drink in the lab and never taste chemicals. | ID hazards Identify hazardous materials before beginning labs. | Be attentive Be attentive while in the lab. Don't leave lit Bunsen burners unattended or leave an experiment in progress. | ||||
Be careful when handling hot glassware Turn off all heating appliances when not in use. Keep flammable your workspace. |
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Keep a clean workspace Don't obstruct work areas, floors, or exits. Keep coats, bags and other personal items stored in designated areas away from the lab. Don't block sink drains with debris. | Handle glassware carefully Properly dispose of anything that breaks. Report cuts, spills and broken glass to your instructor immediately |
Clean up After completing the lab, carefully clean your workspace and the equipment, and wash your hands. |
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