Laboratory Safety & Practical Skills

Introduction

Biology laboratory practical work is an essential part of Cameroon O-Level Biology. Safety and proper handling of equipment are crucial to prevent accidents and ensure reliable results.

Safety Rules

• Wear lab coat, gloves, and protective eyewear.
• Know the location of fire extinguisher, first aid kit, and emergency exit.
• Do not eat or drink in the laboratory.
• Handle chemicals, glassware, and equipment carefully.
• Dispose of waste appropriately.
• Wash hands thoroughly after practicals.

Common Laboratory Equipment

• Beakers, flasks, test tubes, pipettes, measuring cylinders – for handling liquids.
• Bunsen burner – for heating substances.
• Microscope – for observing microorganisms and cell structures.
• Balance – for measuring mass.
• Thermometers – for measuring temperature.
• Glass slides and cover slips – for preparing specimens.

Diagram: Microscope

Practice Questions & Answers

• Q: List five laboratory safety rules.
  A: Wear protective clothing, know emergency exits, do not eat/drink, handle chemicals carefully, wash hands after practicals.
• Q: Name five common laboratory equipment.
  A: Beakers, pipettes, microscope, Bunsen burner, balance.
• Q: Why is laboratory safety important?
  A: To prevent accidents, injuries, and contamination, and to ensure accurate experimental results.