Overview
This lecture introduces essential science lab safety rules, proper attire, correct handling of equipment, and responsible behavior to ensure a safe and enjoyable laboratory experience.
Lab Safety Responsibilities
- Both teachers and students share responsibility for maintaining safety in the science classroom.
- Always follow both written and verbal instructions from your teacher.
- Never perform unauthorized experiments or work alone without the teacher's permission.
Proper Lab Attire
- Wear closed-toed shoes, a lab apron, goggles, and avoid baggy clothing or dangling accessories.
- Tie back long hair to prevent accidents, especially when using open flames.
Safe Behavior in the Lab
- Only bring necessary items (calculator, pencil, lab sheet) into the lab; extra items are hazards.
- Handle all lab equipment and specimens respectfully and responsibly.
- Never eat, drink, or taste anything in the science lab.
Handling Chemicals and Equipment
- Read chemical labels carefully; similar-looking substances can react differently.
- Waft vapors toward your nose instead of directly inhaling to identify smells.
- Always handle acids, bases, and other chemicals with care and follow teacher instructions for disposal.
Responding to Hazards and Accidents
- Notify the teacher immediately about broken glass, chemical spills, or safety hazards.
- Use protective gloves to pick up broken glass; use a broom and dustpan for the rest.
- Use the eyewash station for 15–20 minutes if chemicals get into your eyes.
Using Lab Equipment Safely
- Carry microscopes with two hands: one on the arm, one under the base.
- Handle and carry sharp objects tip-down and never try to catch falling sharp items.
- Light Bunsen burners safely: strike match first, turn on gas, and adjust to a blue flame.
Working with Living Organisms
- Handle live animals with care and respect; only with instructor’s permission.
- Wash hands after handling animals.
Key Terms & Definitions
- Personal Safety Equipment — Items like goggles, aprons, and gloves used for individual protection.
- Classroom Safety Equipment — Includes fire blanket, fire extinguisher, first aid kit, eyewash station, and safety shower.
- Wafting — Fanning vapors toward your nose to safely identify a substance’s smell.
Action Items / Next Steps
- Review your lab’s specific safety rules and equipment locations.
- Prepare appropriate attire for lab days.
- Complete any assigned safety quizzes or forms.