Let's prove hot air is lighter than cold air!
Materials:
2 cloth bags
1 candle
1 hanger
Materials:
2 cloth bags
1 candle
1 hanger
Instructions
Tie the cloth bags at the ends of the hanger. ( One at each end)
Hold the hanger from the hook, at an equal balace.
Now ask a friend to light the candle and heat one of the bags make sure that the flame of the candle does not touches the bags.
Observe: The bag that was heated rises up .
This proves hot air is lighter than cold air.
