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Create Your Own Volcano!


Create Your Own Volcano

By Melissa Kariger, FCPL Youth Services Manager, Kingstowne Library

One way to get kids excited about STEM - science, technology, engineering and math - is through activities with a “wow” factor. Some easy experiments use simple materials you have at home and are sure to wow kids. What better way to do that than with a volcanic eruption?


  • plastic cup
  • plate
  • aluminum foil
  • scissors
  • tape
  • vinegar
  • water
  • baking soda
  • food coloring
  • cookie sheet


  1. Tape the cup to the middle of the paper plate and place the plate on the cookie sheet.
  2. Cover the plate and cup in foil.
  3. Cut an X in the foil over the cup. Fold the foil down and tape to the inside of the cup.
  4. Add 2 tablespoons of water, 2 tablespoons of baking soda and a few drops of food coloring to the cup and stir.
  5. Pour in 2 tablespoons of vinegar and watch your volcano erupt!

Why does it work?

Baking soda and vinegar react to form a gas called carbon dioxide, which builds up and causes the solution to erupt. This reaction is similar to what happens with a real volcanic eruption, when magma rises toward the surface and gas bubbles start to form.

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