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How does electricity flow from a Lemon to a Light Bulb?
Question Date: 2016-11-05
Answer 1:

There is no electricity naturally within a lemon —the electricity comes from a chemical reaction that occurs when you put metal inside the lemon.

When you use a lemon to make a battery, you insert two different kinds of metal into the lemon, usually zinc and copper, and connect each of these metals by wires to a light bulb. The zinc metal then reacts with the acidic solution (you know it’s acidic because the lemon tastes sour), and dissolves. As the zinc dissolves, it creates an electrical current in the wire which passes through the light bulb and causes the bulb to shine.

Answer 2:

The lemon is there only to allow flow of atoms between the two metal pieces. In order to work, one metal has to combine to form a salt with the acid in the lemon while the other is reduced to a more active state. This cause current to flow between the two metal pieces through the light bulb, which lights up the bulb.

Answer 3:

Electricity flows by the movement of electrons, which are tiny objects with negative charge. Lemons are acidic (you can taste this). The acid enables electrons in the lemon to flow from one end of the lemon to the other. These electrons then go to the light bulb.

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