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In this online Flash game, learners take to the skies in a hot air balloon and are challenged to beat other balloonists' times to the finish line without crashing.

Learners assemble a hot-air balloon from tissue paper. The heated air (from a heat gun) inside the balloon is less dense than the surrounding air and causes the balloon to float.

In this activity, learners will create a model rocket out of an inflated balloon attached to a straw on a taught string.

Experiment with force and pressure by building a balloon rocket. When launched, the balloon will run a track wherever you place the string.