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Fruit battery

We looked at a few of the many applications of science and technology involving products available from a supermarket.  In this experiment we use the acids withn different fruits as a battery. Monitor your results for the different fruits and see what produces the most power.

You will need:

  • Different fruit (lemons, potatoes…)
  • metal strips
  • nails or coins
  • LEDs
  • crocodile clips (can be bought in DIY/hardware stores)
1

Roll the lemon around or give it a good squeeze to get the juices moving.

2

Insert a penny into a cut on one side of the lemon.

3

Push a galvanized nail into the other side of the lemon. The nail and penny must not touch.

4

Attach crocodile clips from the nail and penny to the LED to complete the circuit.

5

Use additional pieces of fruit if necessary to light the LED, see how many of each item is needed for success.

 

Tips:

  • You could also compare different types of metals and see whether any of them are more effective.