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WorksheetsAir Around Us
Total questions: 7
Worksheet time: 4mins
Name
Class
Date
1.
What is air?
a)
It's the name of a girl
b)
It's an old man
c)
It's a mixture
d)
It's an element
2.
Which of the following is true for air?
1) It's a mixture of gases.
2) It has a sweet taste.
3) we cannot see air.
4) Air has a good fragrance.
a)
Only 1 and 4
b)
Only 1 and 2
c)
Only 1 and 3
d)
Only 1, 2, 3 and 4
3.
Air takes up ______.
a)
Space
b)
Weight
c)
Water
d)
Height
4.
Plants and Animals breathe in air.
a)
True
b)
False
5.
Which gas in the atmosphere is essential for respiration?
a)
Nitrogen
b)
Oxygen
c)
Carbon Dioxide
d)
Carbon Monoxide
6.
What is the percentage of oxygen in the air?
a)
17%
b)
52%
c)
21%
d)
84%
7.
Which gas is necessary for burning?
a)
Nitrogen
b)
Oxygen
c)
CO2
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