Chemical Hazard Symbols

Try these questions

5 questions from this lesson’s quiz. Start the lesson to answer them and see the right answers.

1. 1. What shape and border colour do standard GHS chemical hazard pictograms have?

   • A. A red-bordered diamond (square standing on a point)
   • B. A blue-bordered circle
   • C. A yellow-bordered triangle
   • D. A green-bordered rectangle

2. 2. A learner wants to heat ethanol in a beaker. What is the safest method?

   • A. Heat it directly over a roaring Bunsen flame
   • B. Heat it in a hot water bath
   • C. Heat it with the beaker uncovered next to a spirit burner
   • D. Heat it directly while watching closely

3. 3. Which statement about corrosive chemicals is correct?

   • A. Only acids are corrosive
   • B. Strong alkalis such as sodium hydroxide are also corrosive
   • C. Corrosive chemicals only damage metals, not skin
   • D. Corrosive chemicals are harmless once they feel soapy

4. 4. Mr Omondi is diluting concentrated sulphuric acid for a demonstration. What should he do?

   • A. Add water quickly to the acid
   • B. Add acid slowly to water
   • C. Pour both liquids in together at the same time
   • D. Add acid to water only after heating the water to boiling

5. 5. What word describes a substance that easily catches fire and burns rapidly in air?

   Type your answer in the lesson.

More in Laboratory Safety

• ▸Acids, Bases, and Natural Indicators
• ▸Acids, Bases and the pH Scale
• ▸Introduction to Laboratory Safety and Rules
• ▸Laboratory Design, Layout, and Safety Installations
• ▸Chemical Hazard Symbols
• ▸Causes of Common Laboratory Accidents
• ▸First Aid Measures Laboratory Burns and Scalds
• ▸First Aid Measures Cuts and Glassware Injuries

See every Grade 7 Integrated Science lesson →