Question

describe an experiment to show that air exerts pressure

Answer 1

when we blow a balloon, due to pressure it expands ,when it blown more and more it can bursts due to air pressure.
this is example of an experiment of air pressure that you can try.

Answer 2

Answer:

We have experienced that when we blow a balloon, the balloon becomes tight. If we try to fill more air, then the balloon will burst after an extent. This happens because air exerts pressure

We have also experienced the movement of fringes of windows and doors of our houses when wind blows in a high speed. This also happens because air exerts pressure