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Grade 6 Chemistry

Total questions: 18

Worksheet time: 11mins

Name
Class
Date
1.
Which gas in our atmosphere is most abundant?
a)
Argon
b)
Oxygen
c)
Nitrogen
d)
Carbon Dioxide
2.
What is the percentage of oxygen in Earth's atmosphere?
a)
1%
b)
21%
c)
78%
d)
90%
3.
What are the 2 most abundant gases in Earth's atmosphere?
a)
carbon dioxide and oxygen
b)
carbon dioxide and nitrogen
c)
nitrogen and oxygen
d)
nitrogen and hydrogen 
4.

Which of the following is not a property of air?

a)

Air has weight

b)

Air is invisible

c)

Air is oxygen

d)

Air is impacted by temperature

5.

What can be concluded from the experiment pictured?

a)

Air has no volume

b)

Air has mass

c)

The mass of the black balloon is increasing

d)

The mass of the meter stick is unreliable

6.

Which property of air does an inflated basketball prove?

a)

air takes up space

b)

air can be compressed

c)

air has mass

d)

air is a fluid

7.

Back to the balloons! What property of air are you seeing in this picture? Air ________ _____ __________ .

(a)  

8.

Air molecules can be squeezed into small spaces. This means that air can be (a)   .

9.

Let's start with an easy one! You inflate a balloon and notice that it weighs more than a deflated balloon of the same size. You're observing that air has (a)  

10.

When air is heated up, it will _________.

a)

catch on fire

b)

expand

c)

compress

d)

fall

11.

What is the percentage composition of nitrogen in air?

a)

78%

b)

75%

c)

86%

12.

________________ balances out oxygen in the atmosphere.

a)

Carbon dioxide

b)

Nitrogen

c)

Argon

13.

___________________ is used to make fire extinguishers.

a)

Nitrogen

b)

Silicon

c)

Oxygen

14.

Plants use ________________ for photosynthesis.

a)

Chlorine

b)

Nitrogen

c)

Carbon dioxide

15.

_______________ is one of the most abundantly found gases on earth.

a)

Oxygen

b)

Carbon dioxide

c)

Nitrogen

16.

______________ is a combustible gas.

a)

Nitrogen

b)

Oxygen

c)

Argon

17.
Which of these do plants need in order to make food?
a)
argon
b)
carbon dioxide
c)
nitrogen
d)
oxygen
18.

How much of other gases are in the atmosphere?

a)

100%

b)

78%

c)

21%

d)

1%