Solar Bag!

What a great science fair experiment! Make this 50-foot bag rise high in the air, simply by filling it with air and letting it warm in the sun. The Solar Bag measures 50 feet long and 29 inches in diameter, it's just huge! 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. The included instruction manual explains how to do it, how it works, and more!

Watch a Sun Bag demonstration! (click here) - will open in a new window