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WorksheetsIS_Section Quiz_1.3-1.4_e
Total questions: 20
Worksheet time: 10mins
We should wear safety goggles when heating substances.
True
False
We do not need to take any safety precautions when handling irritant chemicals.
True
False
We should handle harmful gas in a fume cupboard when doing experiments.
True
False
A fire can be put out by removing the fuel from the fire.
True
False
The filter paper can be omitted in a vertical section diagram.
True
False
We should not smell any chemicals directly.
True
False
Explosive chemicals should be avoided from shock.
True
False
All three conditions making up the fire triangle must be removed in order to put out a fire.
True
False
There is only one type of fire extinguisher — the water type.
True
False
We usually use a glass rod to stir liquids in the laboratory.
True
False
When handling a chemical with the hazard warning symbol as shown, we should
A. keep it away from heat and flame.
B. avoid breathing in the vapour of the chemical.
C. wear safety goggles and gloves.
D. store it in a well ventilated room.
Which of the following rules about laboratory safety is correct?
A. Do not wear safety goggles if glasses are worn.
B. Know the fire escape route.
C. Enter the laboratory any time to finish the experiment as soon as possible.
D. Always throw solid wastes into the sink.
Which of the following is NOT a condition making up the fire triangle?
A. Oxygen
B. Fuel
C. High temperature
D. Water
Which of the following apparatus should be used to transfer a small amount of liquid?
Which of the following is NOT a tip for drawing vertical section diagrams?
A. Keep all parts in proportion
B. Darker parts should be shaded.
C. Draw with a sharpened HB pencil.
D. Draw straight lines with a ruler.
Which of the following chemicals do we need to wear safety goggles and gloves when handling them?
A. (1) and (2) only
B. (2) and (3) only
C. (1), (3) and (4) only
D. (2), (3) and (4) only
If some acids (酸) accidentally splash on our hands when we are doing an experiment, we should
A. place the affected area under slow running water.
B. wipe the affected area with tissue paper.
C. apply a dressing to it immediately.
D. put our hands in warm water.
Alden is heating a test tube of liquid as shown. Which of the following accidents most likely happens?
A. The hot test tube may be broken.
B. He may have heat burn on his hand.
C. The hot liquid inside the test tube may splash into his eyes.
D. His shirt may catch a fire.
This vertical section diagram represents
A. a funnel.
B. a funnel with a filter paper.
C. a filter paper.
D. an inverted conical flask.
This apparatus is used to
collect or hold gases.
hold a small amount of liquids.
store hot objects
measure the volume of liquids.
