Solar Bag Fill our Solar Bag with air and let solar energy make it float email to friend
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We guarantee you have never seen a Solar Bag like this! Our Solar Bag measures 50 feet long and 29 inches in diameter. The thin, black plastic bag holds over 200 cubic feet of air. 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 minutes, the bag rises to the sky and floats like a giant science sausage. Better tie it down or you'll be flying as well! Includes a complete science activity guide.

What's included?

- 50 foot long Solar Bag
- Activity guide and student worksheets
- (Solar Bag String NOT included)

How does it work?

As the sun heats the air inside the Solar Bag, the air molecules move faster, bumping into each other and into the sides of the bag. The actions of the molecules and changes in air pressure expand the bag, making it lighter than the air that surrounds it. It's amazing science at work!

What does it teach?

Learn about the properties of air and air pressure. Discover the science behind density and buoyancy and how they are affected by heat.