2. The air is a mixture of
gases.
It contains Nitrogen, Oxygen
and other Gases.

3. The atmosphere is a blanket of air which covers and protects
the Earth from radiation and cold space.
The atmosphere has 5 layers: Troposphere, Stratosphere,
Mesosphere, Thermosphere and Exosphere.

4. It is the upper layer of the atmosphere.
It is where astronauts orbit the Earth.
It is the coldest layer of the atmosphere
It is where aeroplanes fly.
It is where the weather occurs.

5. It is the degree of It is moving air.
heat or cold. It is caused by differences
in air pressure.

6. It is the amount of
It is a type of
water vapour in the air
water precipitation

7. It contains thunder and It is a heavy fall
lightning. of snow.
A lightning is a flash of
electricity.

8. They occur after They occur when there
heavy rain, when snow is very little rain for a
melts or river rises. long time.

9. We use a thermometer
to measure temperature. We use a rain gauge to
The mercury expands or measure rainfall.
contracts when it’s hot It is an open-ended tube
or cold. that collects rain.

10. We use the anemometer We use a rain gauge
to measure wind speed to measure water
and direction. vapour in the air.