Question

Fill a bucket half with water. Put a pin in the water and see what happens. Now, put the same pin on a piece of newspaper and place it carefully on the surface of water. Watch it for sometime. What happens? You can remove the piece of newspaper with the help of another pin, if you want.

Answer 1

On placing the pin in bucket of water, the pin sinks. When placing the pin on a piece of newspaper and gently laying it on the surface of the water, then, after a while, the paper melts and it sinks in water.