We are continuing with our electricity unit in science and have been investigating whether fruit can produce electricity. How would this show how a battery works?
Lemons can be used in a circuit to power an LED. The juicy part of the lemon contains electrolytes that conduct electricity – approximately 0.7 – 0.9 volts. Four lemons are needed to power an LED. The children turned the lemons into batteries by using zinc nails and copper coins. The copper acts as the positive terminal of a battery and the zinc nail becomes the negative terminal. They then added the LED, wires and a switch. The LED lit up – hooray!
What other fruits or vegetables can be used in a circuit?
