Pocket Volcano, Surface or Underwater Kit

Simply fill this volcano with baking soda, set it on a table, pour vinegar into the top, and watch it erupt.

To show your students what a smoking underwater volcano on the ocean floor would look like, fill the volcano with baking soda and place it in a glass beaker of water. For a fun effect, add colored bath tablets, sold separately. The Pocket Volcano comes with enough baking soda for two eruptions.