The Green Science Windmill Generator turns a plastic soda bottle into a working wind turbine that generates real electricity. Kids build a 5-inch generator from the included rotor, motor, LED light, and essential parts, then watch as wind power lights up the LED bulb. No batteries required, just the wind and a recycled bottle. This hands-on STEM kit teaches renewable energy concepts by letting young scientists create actual power from air currents. Builds a fully functional wind turbine that generates electricity to power an included LED light All essential components included (rotor, motor, LED, and detailed instructions), plus one plastic soda bottle from home Teaches real science concepts about wind power and renewable energy through construction and experimentation Combines green science education with recycling by repurposing a plastic bottle into a working generator