Air is not visible but it can be felt or noticed by:
Is Air everywhere?
Earth is surrounded by air is called the atmosphere.
Air is a mixture of many gases or substances:
Is the oxygen present in the water?
Is the oxygen present in the Soil?
How plants and Animals are interdepended?
What is the use of Air?
- When leaves of tree rustle
- hanging clothes wings aways
- Pages on open book fluttering when Fan is switched on
- Air helps to fly your kite
- Winnowing is more effective in moving air.
Is Air everywhere?
- Air occupies space
- Its presents everywhere around us
- Air has no color.
- It is transparent.
Atmosphere
Air is a mixture of many gases or substances:
- Water Vapour
- Oxygen, it supports burning
- Nitrogen does not support burning.
- Carbon dioxide, plants consume Co2 during the photosynthesis process, it is ani burning air.
- Dust and Smoke
Is the oxygen present in the water?
- When you heat up water, it creates a bubble, it shows that oxygen is realizing from water when heating up. This dissolved oxygen in water gets used by aquatic animal and plants
Is the oxygen present in the Soil?
- When you add water in the soil, you will see the bubble coming out from the soil. It indicates that oxygen or air is also present in the soils.
- Plants roots and animal respire this air in the soils
- That why earthworms come out from soils during heavy rains.
How plants and Animals are interdepended?
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| plants and Animals are interdependence |
- For breathing and photosynthesis
- Sailing boats
- Windmill
- Parachutes, airplane
- Birds, insects, and bats fly due to the presence of air.
- Air also helps to the dispersal of seeds and pollen of flowers of several plants.
- Air plays an important role in the water cycle.
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