You'll get "carried away" experimenting with the Solar Energy Bag!
Use the Solar Bag to demonstrate concepts of energy, thermodynamics, density, and buoyancy! Take the 60-foot long, 72" diameter bag outdoors and fill it with air. Close the end, tether with string, and allow the sun's energy to heat the air in the bag. In a few minutes, the bag begins to float! Challenge students to explain their observations using kinetic theory and gas laws.
