Question

Write an activity to prove that our breath contains water vapour

Answer 1

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.

Answer 2

Just take a cold glass of water and place it any where for a while .You will see drop of water out side 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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