* Water (H2O)

* Electricity

* Two electrodes (metal plates)

* A container to hold the water

* Wires

Procedure

1. Fill the container with water.

2. Place the two electrodes in the water, making sure that they are not touching each other.

3. Connect the electrodes to the electricity source using the wires.

4. Turn on the electricity source.

The electricity will cause the water molecules to split into hydrogen and oxygen atoms. The hydrogen atoms will collect at one electrode, while the oxygen atoms will collect at the other electrode.

Safety Precautions

* Wear gloves and eye protection.

* Do not touch the electrodes while the electricity is on.

* Do not use this procedure with any other liquids.

Explanation

When the electricity is turned on, the water molecules are exposed to a strong electric field. This field causes the water molecules to break apart into hydrogen and oxygen atoms. The hydrogen atoms have a positive charge, while the oxygen atoms have a negative charge. The positive and negative charges are attracted to the oppositely charged electrodes. The hydrogen atoms are attracted to the negative electrode, while the oxygen atoms are attracted to the positive electrode.

Applications

The process of splitting water into hydrogen and oxygen is called electrolysis. Electrolysis is used to produce hydrogen fuel, which is a clean-burning fuel that does not emit any pollutants. Electrolysis is also used to produce oxygen for industrial and medical purposes.