Green Science Kits
(All require recycled bottles or cans and a screwdriver.) Ages 8+.
Watch the LED glow as it is powered by wind energy! No batteries required.
Convert this small motor into a generator, which can be used to power a light bulb. No batteries required.
Tin Can Robot
Turn a metal can into a walking, wobbling, bug-eyed robot. Requires 1 AA battery.