Which of the following is an appropriate laboratory safety practice?

• A. Students should read instructions thoroughly before performing laboratory procedures.
• B. Students should eat and drink in the laboratory.
• C. Students should ignore spills and accidents.
• D. Students should handle all chemicals without supervision.

Answer: (A)

Reading instructions thoroughly before performing laboratory procedures is a fundamental safety habit. When you read first, you learn the exact steps to follow, which equipment to use, what hazards might be present, and which PPE is needed. It also tells you how to handle waste and what to do in an emergency, like where the eyewash or fire extinguisher is located. This preparation helps you anticipate risks, follow the correct sequence, and prevent mistakes that could lead to injuries or accidents.

Eating or drinking in the lab is dangerous because it can introduce chemical contaminants into your body. Ignoring spills and accidents prevents quick containment and proper cleanup, increasing exposure risk. Handling all chemicals without supervision bypasses trained guidance and oversight, which is essential for safe handling and disposal. So, the best safety practice is to read instructions thoroughly before starting and to follow the supervision and established rules.