Has your flashlight ever stopped working because the batteries were dead? It’s no fun walking around in complete darkness. Batteries are everywhere—in our toys, in our cars, in our flashlights and cell phones. But how do they work? What makes them stop working? You can learn how to make a lemon battery to learn more about these very important devices.
Problem:
How does a battery work?
Materials:
A lemon, or other citrus fruit
18 (or smaller) gauge copper wire
Wire stripper/clipper
A grown-up or older friend
Steel paper clip, small galvanized nail (one that is covered in zinc), or a piece of zinc (ideal)