1. Take a heavy ball.
2. Drop it on a thick bed of wet sand from different heights from 25 cm to 1.5 m.
3. Observe the depression created by the ball on die bed of sand. Compare the depths of these depressions.
4. When the ball is dropped from different heights, the depressions created by the ball on the bed of sand will be different. ‘
5. As the height from which the ball was dropped increases, the depth of depression also increases.
6. Thus we can conclude that a body at some height possesses energy.
