Eamon has been fascinated by volcanos. We have read books, watched videos online and talked about them. It was our turn to host preschool, so we decided to talk about volcanos. The largest in the world is in Hawaii, and the largest is in our solar system is on Mars. The kids thought it was cool. We made our own volcanos out of playdough. To make the volcanos erupt, we put baking soda mixed with water and some dish soap into the cavities of the volcanos. We then added red-colored vinegar. The kids loved the eruptions.