Kids ages 8â€”12 will love these 22 exciting activities and experiments focused on producing and playing with renewable energy. Projects range from the quick and simple â€” like the Pie Plate Wind-Maker â€” to the thrillingly large-scale, like Pedal Power, in which kids use a bicycle to power a 12-volt battery. Each activity teaches children about renewable energy and larger environmental issues. Education doesnâ€™t get more fun than this! Catch the Wind, Harness the Sun offers more than enough to get any kid charged up about renewable energy.