Sustainable Living in the 21st Century. Build and use an alternative energy model house and 20 other energy-related devices. Learn how about energy from the sun, wind, plants and electro-chemical reactions. Discover how to transform, store and use these forms of energy with real working models. Ages 12 and up

The Heat Trap: Construct and experiment with a greenhouse.

The Sun Collector:Collect the sun’s rays to heat water.

The Sun Burners: Make a solar cooker while learning about the principles of light before you cook rice and bake bread.

The Water Vampire: Desalinate water, plant watercress, produce sauerkraut and make chewing gum.

The Heat Absorbers:Learn how heat of evaporation provides cooling, conduct experiments about air humidity, build a hygrometer and test a refrigerator.

Power Plants: Grow beans, make a potted plant feed a candle, harvest sunflower energy, build an oil press, and assemble an oil lamp.

The Energy Converters:Extract electric current from sunlight and metals in acid, build a light telephone, galvanize a nail and split water into hydrogen and oxygen.

The Forces of Magnetism: Generate electric current with magnetic fields. Build a current indicator, electric and solar motors, a transfer switch, and a crane. Lift pencils with the sun and learn about levers. Build an electric car.

Wings in the Wind: Build a sail car and learn how wings and sails transform energy. Learn to sail with the wind, by the wind, and against the wind and examine a mixed energy vehicle.