Solar Bag
Ages 8+

This solar bag measures 50 feet long and 29 inches in diameter. Simply fill with air by running, tie off the ends, and let the solar energy of the sun heat the air inside the bag. Within about five minutes, the bag will rise into the sky.

A fascinating experiment that teaches kids about air and air pressure and how it is affected by heat from the sun. Recommended for grades 2 - 6.