This hot air, cold air science activity is a great experiment to watch the effects of hot air and cold air on balloon.


What you will need?

  • 2 containers, one filled with hot tap water and other with cold water;
  • 1 balloon;
  • 1 plastic bottle.

Place the balloon over the mouth of the empty plastic bottle.

What happens to the balloon when placed in hot water?

Wait a few minutes and notice the balloon start to inflate and expand.

What happens to the balloon when placed in cold water?

Wait a few moments and notice that the balloon start to deflate and contract.

Science activities and experiments are a great opportunity to make connections between real life experiences such as the hot air balloon ride.

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