Describe an activity to show that air contain water vapour
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Explanation:
Just take a cold glass of water and place it anywhere for a while. You will see drop of water outside the glass. As the water vapors in the air strike the cold glass, they loose their kinetic energy and condense on the outer surface. That's why you see the water outside glass.
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Answer:
Activity:
Take out a bottle of soft drink from the refrigerator and place it on the table.
Observe for few minutes.
You will see small drops of water appearing on the outer surface of the bottle.
This is because water vapour present in the air condenses and forms small drops of water.
This activity proves that air contains water vapour.
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