Volcano

1. On a cookie sheet with an edge; take a paper cup and mound some dirt or play dough around it to make a volcano shape. You can omit the cookie sheet if you do it outside.
2. Into the clean cup put 1/4 cup of warm water, several drops of liquid soap and for color a few drops of food dye.
3. Add one tablespoon of baking soda and stir gently.
4. When you add the 1/4 cup of vinegar the stuff will start to foam over.

5. Clean up by pouring the liquids down the drain and the solids can go in the trash.