Blow up a balloon with hot air science experiment

Find out how to blow up a balloon with hot air with this easy science experiment.

When the bottle is placed in hot water, the air inside heats up. Warm air molecules move faster than cooler air molecules. The warm air expands and moves into the balloon, inflating it.

As the air cools, the air molecules move more slowly and closer together, taking up less space, causing the balloon to deflate.

Видео Blow up a balloon with hot air science experiment канала Science Sparks