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n Battery – A container filled with metal plates and chemicals that react to produce an electric current.
n Electricity – A general term describing force, energy, current, or power that comes from the movement of electric charges.
n Step 1: Have an adult cut two slits into the lemon.
n Step 2: Place the nickel into one of the slits and the penny into the other slit.
n Step 3: Cut the wire into two 6-inch pieces. Make sure the ends of each piece are exposed.
n Step 4: Slide the ends of each wire into the lemon next to each coin.
n Step 5: Holding the free ends of the wire, stick the exposed ends of the wire to your tongue.
You feel a slight tingle when you touch the exposed ends of each wire to your tongue because the coins react with the acid in the lemon creating a small electrical current.