Disappearing Colors

	Project title: Disappearing Colors
Difficulty level:	Elementary school
Main link:	None

Hypothesis:

Many different types of chemicals are used to oxidize or change the molecules. Chlorine gas is an oxidizer used as a desinfectant in water treatment plants to kill bacteria and help make water safe to drink. Hydrogen peroxide can lighter the color of hair. Chlorine dioxide is used to bleach paper pulp and oxidize pigments in the pulp without damaging the wood fibers, in the textile industry, this bleaching is used to make white paper.

Materials:

Materials Needed:
-Water
-Three jars
-Blue food coloring
-Spoon
-Safety goggles
-Liquid laundry bleach such as Clorox

The Procedure:

Add 1 cup of water and 5 drops of food coloring to the first jar of water and also to the second one. Use a spoon to stir the water and food coloring in each jar, until they are well mixed.

Pour a small amount of bleach into the empty third jar, using this jar to pour the bleach into bleach containers cups. Add 2 cupfuls of bleachinto the first jar.

Now, as shown in figure A. Stir the bleach and water mixture. Let first and second jar sit for 20 mins. while you are waiting, observe what happens in the first and second jar

Results:

My research was based on the mixing of water, color, and chemicals. I wanted to know what will happen if i mix them all together. I found out that water and other liquids are mixed together such as bleach, water, blue food coloring to change its dye molecules so they no longer have a color.

After the experiment is complete, pour the liquids from the jars down the sink, so itdrains and thoroughly rinse the three jars and spoon with water.