WorksheetsSafety in the Laboratories
Total questions: 12
Worksheet time: 9mins
Name
Class
Date
1.
What does this symbol mean?
a)
Environmental Toxicity
b)
Harmfull/Irritant
c)
Corrosives
d)
Acute Toxicity
2.
Which of the following is incorrect about lab safety?
a)
Students must not enter or work in laboratories unless a teacher is present.
b)
It is OK for me to drink in the lab as long as I do not eat.
c)
Safety goggles must be worn whenever there is any risk of injury to the eyes.
d)
Wash hands thoroughly after all practical works.
3.
If you break a beaker in the lab, the first thing you should do is
a)
Report to your teacher
b)
Clean up the broken glass using bare hands
c)
Put the broken glass in sharps & broken bin
d)
Carefully pick up the broken pieces using tongs and/or small brush with dustpan
4.
Which of the following procedure is incorrect?
a)
Light the Bunsen burner with the air hole open
b)
Light the Bunsen burner with the air hole closed
c)
The lit Bunsen burners should not be leave unattended
d)
Always point the top ends of test tubes away from people when doing heating
5.
Select the two examples where proper safety precautions are observed.
a)
D & E
b)
B & C
c)
C & D
d)
A & C
6.
Which of the following statements is/are correct?
a)
Wash hands thoroughly after all practical works
b)
Chipped or cracked glassware should not be used
c)
Unlabelled chemicals should not be used
d)
All of the above
7.
Which of the following statement on Electrical Safety is correct?
a)
Power points can be overload
b)
Electrical equipment with exposed cables can be use
c)
Do not touch electrical appliances with wet hands
d)
Do attempt to repair an electrical device
8.
What does this symbol means?
a)
Harmful/Irritant
b)
Acute Toxicity
c)
Environmental Toxicity
d)
Explosives
9.
When heating liquid in test tube, one should
a)
Close test tube tightly with cork
b)
Hold test tubes at a slant (slope) pointed away from everyone
c)
Hold the test tube pointing upward
d)
None of the above
10.
Which of the following statement on glassware safety is correct?
a)
All breakages should be recorded in a breakage form yearly
b)
Glassware should not be stored in a secure and convenient manner
c)
Chipped glassware can be used
d)
Broken glasses to be disposed into the waste bin
11.
Which of the following statement on chemical safety is incorrect?
a)
Wear protective goggles whenever heating or pouring hazardous chemicals
b)
Never mix chemicals together unless you are told to do so
c)
You should taste chemicals in the lab
d)
Breakages, accidents and spillage should be immediately reported to the teacher
12.
When you find an unlabelled bottle of chemical in the lab, you should
a)
Smell it to see what it is
b)
Pour it down the sink
c)
Use it for your practical
d)
Report to the teacher
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