Using our brand new science kit in the &#8221Green Science&#8221 series, your future scientist can help save the planet by recycling a plastic bottle to support their wind generator! Build this amazing wind generator and learn about renewable energy. Watch the LED glow as it is powered by free energy from the wind. No batteries required! Science Kit includes: 1 rotor, 1 front-housing with gear and rotor shaft installed, 1 back housing, 2 half screw caps, 1 tail, 1 toy motor with gear (generator), 1 motor cover, 8 small screws, 1 LED unit with wires and detailed assembly instructions, including &#8221How it Works&#8221 with fun facts. You supply the plastic bottle and create wind energy!