Elephant Toothpaste

Materials:

• 16 ounce plastic water bottle
• 1/2 cup hydrogen peroxide (3%)
• 1 tablespoon dish soap
• 1 tablespoon dry active yeast
• 3 tablespoons warm water
• Pan (for catching overflow)
• Small bowl (for mixing yeast and water)
• Spoon
• Funnel (to help add the yeast and water mixture to the water bottle)
• Food coloring (optional)

Instructions:

1. Pour 1/2 cup of hydrogen peroxide into a plastic bottle.
2. On the table, put a pan.  Inside the pan put the plastic bottle.
3. In a small bowl, mix the yeast with warm water.  Set aside for about 5 minutes to allow the yeast mixture to become frothy.
4. While you are waiting for the yeast to become frothy, add dish soap to the bottle and food coloring (optional).
5. Pour the yeast solution into the plastic bottle and water the “elephant toothpaste” erupt from the bottle.