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WorksheetsAir around us
Total questions: 23
Worksheet time: 13mins
What is this picture showing?
A man dancing.
A man walking with support
A man carrying an oxygen cylinder while hiking a mountain.
None of these.
Why do mountaineers carry oxygen cylinders?
Because there is lot of carbon dioxide at high level altitudes.
Because as we go higher above the surface the amount of oxygen decreases and the thickness of the air becomes less.
none of the above
What is atmosphere?
The blanket that we use to sleep.
The blanket of air that surrounds the Earth.
The blanket of air that stops the UV rays of the sun coming harshly at the Earth.
None.
Choose the correct definition of the Atmosphere.
The envelope of air that surrounds the Earth.
The blanket of air that eats the Earth slowly.
The blanket of air that surrounds the Earth
None of the above.
Which component of air supports burning?
Oxygen
Carbon dioxide
Nitrogen
All of these
Which component of air does not support burning?
Dust particles and water vapour .
Carbon dioxide
Nitrogen
None of the above
What is Air? And what do we do with it?
A gas that kills us.
A mixture of many gases.
Gas that protects us from evil.
A gas that we breathe.
Choose one component that is present in the Air.
Nitrogen
Ozone
Cylinder
Sunlight
What is Ozone layer. And why is it getting destroyed?
(Choose 2 options, 1 for each)
Ozone layer is the layer that protects the Earth from the harmful rays of the sun called UV rays.
Ozone layer is the layer that protects the Earth from the meteorites falling.
Ozone layer is getting destroyed because of the polluted air the factories send into the sky.
Ozone layer is getting destroyed because of the growing population.
What is the percentage of Nitrogen?
30%
70%
87%
78%
How much percentage of Oxygen?
25%
30%
35%
21%
How much percentage of Carbon Dioxide?
0.0004%
0.004%
00.004%
0.04%
The air contains dust particles, water vapour and ----------.
Combustion
Atmosphere
Microorganisms
Wind
Air is a ----------- of gases.
Nitrogen
Oxygen
mixture
combustion
Moving air is called ----------.
Storm
Breeze
Wind
None of them
The largest component of air is -------------- which is 78% by volume.
Oxygen
Argon
Neon
Hydrogen
Nitrogen
Air is present in --------, ---------and --------.
Clouds, Water and Sea
Cardboard, Water and Mountain
Sky, Water and Soil
______ from cars makes the air dirty.
Smell
Smoke
Clean
----------------- use dissolved air in water for respiration.
Land animals
Humans
Monkeys
Aquatic animals
I am a gas made of two elements. I am used by plants to make food. I add fizz to beverages:_____________________
Oxygen
Nitrogen
Hydrogen
Carbon dioxide
Choose any three uses of air.
Air is required for respiration and combustion.
Air is required for dancing.
Wind helps in the movement of gliders, aeroplanes, balloons and so on.
Wind helps us to make coffee.
Wind helps insects, bats and birds in flying.
------ is essential for life on Earth.
Months
Smoke
Glass
Atmosphere
Why is the police man wearing a mask?
Because of the smoke.
Because of the corona virus out break.
Because he is sick.
All of the reasons
