Lesson: Air

1
Air
2
Forms of air
Breeze
wind
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The given form of air is_____.
storm
Wind
storm
breeze
4
Uses of air
to fly airoplanes
windmill
5
Uses of air
Birds can fly
To fly the kite
6
Uses of air
To dry the clothes
To sail the sailboat
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Fill in the blanks 1. Moving air has a lot of
______ in it. 2. A windmill helps to produce
_______. 3. Breathing impure air can make us
________. 4. Plants keep air _______ and
clean. 5. Moving air is called _______. 6. When
air blows gently it is called ________. 7. Wind
blows in a ________.
Force, Wind, Direction, Electricity, Breeze, Sick, Fresh

Force
electricity
sick
Fresh
wind
breeze
direction
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It might not seem like it,
but air has weight. Anything with mass has
weight, and we know air has mass because we can
feel it when the wind blows. 
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What are the propertiesof air shown by given
image?
Air Occupies space
10

• When we blow air into glass filled with water
  using a straw, we see bubbles due to
•  Water present in it
•  Air
•  Straw
•  Dust particles

11
What are the propertiesof air shown by given
image?
Air carries smell
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•  
• Air pollution means that...
• There are dangerous things like gas and smoke in
  the air.
• It's cloudy outside.
• People need air to breathe.
• People burn fossil fuels to drive cars.

13

• Why is air pollution bad?
• It can make people sick.
• It comes from cars and factories.
• It is invisible.
• It's caused by people.

14
Tell the causes of air pollution with the help
of given images.
Burning crackers
Smoke from Vehicles
15
Tell the causes of air pollution with the help
of given images.
Trees cutting
Smoke from Factories
16

•  
• Which of the following statement is wrong ?
•  Air is all around.
•  It has weight.
• It is needed for breathing and burning.
• Air cannot be filled in any object.

17

• Polluted Air contains dust, smoke, water vapour
  and germs.
•  
• true
• false

18

• Clean air is good for health and we should
  breathe only clean air.
•  
• true
• false

19
How can we control air pollution?
Use bicycle for short distance
Plant more trees
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