ZHUYUN 1 Set Children Bio Energy Science Kit Potato Fruit Supply Electricity Experiment

8 Years and Above. Feature: 100 new and high quality. Ideal for fun learning. Comes with everything needed to experiment with green energy. Set includes digital clock, light bulb, zinc copper plates, wires etc. You may experiment with different fruit like lemon, orange, tomato etc. The fun is unlimited. Description. Material: Plastic, Metal Parts, Electronic Components. Color: As picture shown. Type: Children's Bio Energy Science Kit. Age: Ages 8. How It Works: 1. The metal strips and potato make a simple battery that creates electricity to operate to operate the clock. Each potato works as a device called a electrochemical cell. It converts the chemical energy stored in the metal strips intoelectrucal energy. Two potatoes are needed to make electricity strong enough to run the clock. 2. A cell works because of the chemical properties of the metals inside in this case the copper and zinc). The different properties cause tiny particles charged with electricity. called ions to move betwe