Experiment of heat

Materials:
2 balloons
a candle
water
matches

It is an experiment in heat conduction . You put an empty balloon above candle flame . Hot air  comes up from the candle and the balloon pops . Hot air melts a small hole in the balloon .


You put some water in the balloon . Heat goes from the candle into the balloon , then it goes into the water . Water pulls the heat away from the rubber of the balloon . The rubber does not melt and the balloon does not pop .