Science 10 Chemistry Safety Mastery Quiz: WHMIS, HHPS, MSDS & Lab Rules

📘 Science 10 Chemistry – Study Guide
Topic 1: Lab Safety, WHMIS, HHPS, MSDS



1. WHMIS (Workplace Hazardous
Materials Information System)
Purpose of WHMIS

●​ Provides information on storage, handling, use, and disposal of hazardous
workplace chemicals​

●​ Includes first aid procedures​

●​ All hazardous materials have a WHMIS label​

●​ Users must recognize symbols rather than memorize procedures​



Three Main WHMIS Hazard Categories

1.​ Flammability​

○​ Materials that easily catch fire and burn in air​

2.​ Reactivity​

○​ Materials that release large amounts of heat or energy​

3.​ Health Hazard​

○​ Materials that have harmful or toxic effects upon exposure​



WHMIS Symbols

, Know the meanings of:

●​ Flammable​

●​ Toxic / Poisonous​

●​ Corrosive​

●​ Oxidizing​

●​ Compressed Gas​

●​ Biohazard​
(Use your teacher’s chart for visuals)​




2. HHPS (Hazardous Household Product
Symbols)
What is HHPS?

●​ Used for household products, not workplace chemicals​

●​ Designed like traffic signs to make danger levels easy to understand​

●​ Use shapes, colors, and symbols to show type and severity of hazard​



Common HHPS Shapes

●​ Octagon = Danger​

●​ Diamond = Warning​

●​ Triangle = Caution​



Common HHPS Hazards