Question

how will you prove that air contains water vapour in it? explain with diagram​

Answer 1

Answer:

Take out a bottle of water(cold) from the refrigerator and place it on the table. 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.

Hope it helps you...All the best.

Explanation:

Answer 2

Answer:

Aim: To show the presence of water vapour in the air

Materials required: Cold water in a glass tumbler

Method: Take a glass tumbler filled with cold water and ice and keep it for a few minutes.After sometime,the water vapour present in the air on coming in contact with the cold surface of the tumbler condenses,and water droplets appear on the outside surface of the glass tumbler.This proves the presence of water vapour in the air.

HENCE,PROVED.✔✔