Question

demonstration of water vapour present in air -by giving one or two activities

Answer 1

when we put ice in glass,small drops gather around the glass surface.it happens because the temperature of small particles of water vapour which are present in air comes down and vapour becomes water drops

Answer 2

Answer:

a)Take out a bottle of soft drink from the refrigerator and place it on the table. b)Observe it for few minutes.

c)you will see small drops of water appearing on the outer surface of the bottle.

d) This is because water vapour present in the air condenses and forms small drops of water.

e) This activity proves that air contains water vapour.