Electrical experiment for kids – Turn a lemon into an electric battery

experiment for kids

In this electrical experiment for kids, we will see how to generate electricity with a lemon. The first electric battery was invented by the physicist Alessandro Volta in 1800. In this experiment, we will use part of the same chemical principle as Volta.
What chemical principle did Volta apply?
Volta discovered that the combination of zinc, copper and salt water had the effect of creating an electric current. In this experiment the salt water is replaced by … you guessed it, the lemon!

Equipment of this electrical experiment for kids:

  • A copper strip
  • A zinc strip
  • A lemon

1. Cut the lemon in half. The lemon will be our energy source.
2. Press the zinc and copper strips into our lemon wedge. Leave a gap of about 1 to 2 cm between them.
3. How will we test our lemon battery? Our tongue will prove that a reaction occurs and that an electric current is flowing.
4. Place your tongue on the ends of the two strips. You should feel a tingling sensation.

Explanation of this electrical experiment for kids:

How does the lemon generate electricity?
The electricity produced is the exchange of electrons between the zinc and copper strips. What is an electron? It is a small electrically charged particle, which is part of an atom. The combination of zinc and lemon produces electrons, while the combination of copper and lemon loses electrons. Nature tries to balance things out and the electrons move from one strip to another. The movement of these electrons, which is made possible by the lemon, creates energy – electricity!

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