Electrolysis

Definition

Electrolysis refers to using energy and electricity to split apart an electrolyte solution, which is a solution that contains ions. In order to split water, the water must be made into an electrolyte which can be done by adding baking soda.

The bonds of molecules store energy so when these bonds are broken, energy is released. By using a battery, enough energy can be provided to allow the water molecules to split apart. Since batteries have two terminals, a positive terminal and a negative terminal, once the water connects to the terminals, energy can flow, splitting the water as a result.

Materials:

Distilled water
2 silver-colored thumb tacks
9V battery
Baking soda
Clear, plastic cup (preferably small)

PROCEDURE:

Insert two thumb tacks into the bottom of the plastic container so that they are spaced at the same distance apart as the two terminals of the 9V battery.
Place the plastic container with the thumb tacks over the terminals of the 9V battery.
Slowly fill the container with distilled water and adjust the tacks if need be.
Add a pinch of baking soda.
Observe what happens.

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