Question

Design an experiment to show that warm air is lighter than cold air.

Answer 1

aim :---an experiment to show that warm air is lighter than cold air.

Explanation:

Tie a thread in the centre of the stick and hold the stick by the thread to balance it. Place a burning candle below one of the bags. The bag above the candle goes up, as the air above the candle becomes warm, it rises, and pushes the bag up.