5E40.25-Fruit and Vegetable Battery


Description: This demonstration uses the energy of two fruit to power a clock.


  • Two fruit (such as lemons or oranges).
  • Fruit Clock

Setup Procedure:

  1. Just remember to get the fruit.

Demonstration Procedure:

  1. Show that the clock is not on.
  2. Stick the copper and galvanized steel electrodes into a fruit as shown in the picture.
  3. Note that the clock is now being powered off two fruit.