Gather baking soda
Gather vinegar
Gather dish soap
Gather red food coloring
Gather a small bottle or cup
Gather clay, paper mache, or playdough
Place the bottle or cup on a tray
Build a volcano shape around the bottle or cup
Leave the top of the bottle or cup open
Add baking soda into the bottle or cup
Add a few drops of dish soap
Add a few drops of red food coloring
Pour vinegar into the bottle or cup
Watch the eruption