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Worksheets

PRACTICAL SAFETY & MANIPULATIVE SKILLS

Total questions: 20

Worksheet time: 20mins

Name
Class
Date
1.
Which of the following is safe laboratory procedure?
a)
Taste unknown chemicals.
b)
Wear safety goggles when instructed to do so.
c)
Continue an experiment when you are unsure of the procedure.
d)
Mix all chemicals at the lab 
2.

Which of the following is the correct laboratory rule?

a)

Eating in the laboratory while doing practical during lunch time

b)

Running in the laboratory when he is in a hurry

c)

Poking the electrical power points with sharp objects

d)

Using the apparatus in the laboratory only when told to do by the lecturer

3.

The following footwear is the best in the laboratory

a)

sandals

b)

open-toed shoes

c)

closed-toe shoes

d)

shoes appropriate for the weather

4.
When in the lab...
a)
long sleeves and loose clothing should be rolled up
b)
closed toe shoes should be worn
c)
long hair should be pulled back
d)
all of the above
5.
When you finish working with chemicals, biological specimens, and other lab substances, always ____.
a)
treat your hands with skin lotion.
b)
wash your hand thoroughly with soap and water.
c)
wipe your hands on a towel.
d)
wipe your hands on your clothes. 
6.

After completing an experiment, all chemical and biological wastes should be

a)

taken home

b)

dumped in the sink

c)

disposed of according to your teachers directions

d)

left at your lab station for the next class/ teacher to clean up

7.

Look at the picture given. Choose the most suitable manipulative skill.

a)

Use and handle apparatus and subtance

b)

Handle specimens

c)

Sketch specimens, apparatus and subtances

d)

Clean apparatus

8.

Look at the picture given. Choose the most suitable manipulative skill.

a)

Use and handle apparatus and subtance

b)

Handle specimens

c)

Sketch specimens, apparatus and subtances

d)

Clean apparatus

9.

Look at the picture given. Choose the most suitable manipulative skill.

a)

Store apparatus

b)

Handle specimens

c)

Sketch specimens, apparatus and subtances

d)

Clean apparatus

10.

Look at the picture given. Choose the most suitable manipulative skill.

a)

Use and handle apparatus and subtances.

b)

Handle specimens

c)

Sketch specimens, apparatus and subtances

d)

Clean apparatus

11.

Which of the following apparatus is the best one to use for measuring a fixed volume of liquid accurately?

a)

Beaker

b)

Cup

c)

Gas jar

d)

Pipette

12.
When heating a substance in a test tube, the test tube should be pointed
a)
Towards you
b)
Away from you and others
c)
Away from others
d)
Towards others and away from you
13.
Identify the equipment shown here:
a)
measuring cylinder
b)
conical flask
c)
beaker
d)
volumetric flask
14.

The laboratory apparatus above is used to measure ______________ .

a)

mass

b)

length

c)

volume

d)

temperature

15.

What is the function of this apparatus?

a)

For containing and mixing chemicals

b)

For separating solids from liquids by using filter paper

c)

For transferring liquids into containers with a small opening

d)

For collecting and holding liquids

16.

Ali would like to heat a test-tube containing chemical X over a Bunsen burner. How should Ali carry put the heating?

a)

Holding the test tube with his bare hands

b)

Holding the test tube with a piece of cloth

c)

Holding the test tube using a test tube holder

d)

Holding the test tube with tongs

17.

Which apparatus is used to pick up small object?

a)

Tong

b)

forceps

c)

test-tube holder

d)

spatula

18.

Q. What is the length of the strip?

a)

8 cm

b)

0 cm

c)

7 cm

d)

1 cm

19.

Which recorded measurement is correct?

a)

39mL

b)

40mL

c)

38mL

d)

34.0mL

20.

What is the name of this hazard symbol?

a)

Toxic

b)

Melting

c)

Corrosive

d)

Washing hands