Dividing Water

	Project title: Dividing Water
Difficulty level:	Middle school
Main link:	None

Hypothesis:

My hypothesis is that water can divided into hydrogen and oxygen using simple household materials.

Materials:

A 9 volt battery. Electrical wire, salt, 2 number 2 pencils, thin cardboard, small glass, water.

The Procedure:

Sharpen each pencil at both ends. Cut the cardboard to fit over glass. Push the two pencils into the cardboard, about an inch apart. Dissolve about a teaspoon of salt into to water and let sit for a while. Using one piece of electrical wire, connect one end on the positive side of the battery and the other to the lead of one of the pencils. Using another piece of elctrical wire, connect one end on the negative side of the battery and the other to the lead of the other pencil. Place the other two ends of the pencils into the salted water.

Results:

As the electricity from the battery travels through and betweent the pencils, the water spilts into hydrogen and chlorine gas, which collect as very tiny bubbbles around each pencil tip.