Wikijunior:Big Book of Fun Science Experiments/Lemon battery

To make a lemon battery you will need:

• A lemon
• A penny
• A nickel
• Copper wire
• An LED or calculator.

Experiment:

• First, use some wire to cover a penny and other piece of wire on the nickel.
• Insert the coins in the lemon and put the other sides of the wires in the sides of the LED.
• Then you will see the electric power of the lemon flowing in the diode.