Safety Briefing Secondary Ones Secondary One Safety Briefing

Safety Briefing Secondary Ones

Secondary One – Safety Briefing How could this accident have been prevented?

Secondary One – Safety Briefing Laboratory rules Throughout the lesson • Be serious at all times in the Science laboratory. Do not play or tamper with the equipment. • Keep your desk clean and tidy. Before you begin the experiment • Prepare all apparatus and arrange them such that you will not knock them over while doing the experiment.

Secondary One – Safety Briefing During the experiment • Never smell or taste chemicals unless your teacher grants permission. • Wear goggles when heating or mixing reactive chemicals. • Never handle broken glass apparatus with your bare hands. Inform your teacher and use a broom and dustpan to remove the broken glass.

Secondary One – Safety Briefing After the experiment • Dispose of waste materials in proper waste bins. • Never throw solids or corrosive liquids in the sink. • Wash your hands thoroughly when the experiment is completed. Failure to ob serve any of these safety precautions can lead to a ccidents such as a fire.

Secondary One – Safety Briefing What should you do if a chemical spillage occurs? If any chemical accidentally gets in your mouth, spit it out into a basin immediately. Rinse your mouth with plenty of water and report it to your teacher. If any chemicals spilled onto other parts of your body or clothing, wash it with plenty of water. Report the spill to your teacher. Report all accidents, breakage and spillage to your teacher immediately.

Secondary One – Safety Briefing Hazard symbols are used to label harmful chemicals. Here are some common hazard symbols to look out for: Explosive Substance will react violently when heated or struck. E. g. flash powder Corrosive Substance will eat away other substances. E. g. sulfuric acid, potassium hydroxide, calcium oxide

Secondary One – Safety Briefing Radioactive Substance emits radiation. E. g. radioactive carbon, uranium Flammable Substance catches fire easily. E. g. petrol, kerosene, alcohol, hydrogen Biohazardous Poisonous substance of a biological nature. E. g. medical waste such as blood and urine samples, micro-organism, virus or toxin

Secondary One – Safety Briefing Irritant Substance produces vapours or fumes which irritate the eyes, nose and throat. E. g. phenol, chloroform Toxic Substance is harmful in small doses. E. g. methanol, cyanide, mercury, carbon monoxide, chlorine

Secondary One – Safety Briefing Now to do Worksheet 1. 3 in your Theory Workbook.