What is it that causes the eruption? If you shake the soda, the gas takes some of the soda with it as it escapes the container.
Is there a specific ingredient that causes the explosion? As soon as the Mentos hit the soda, the carbon dioxide forms more bubbles in the tiny pores that are all over the Mentos surface.
This experiment is fun and exciting and it has made us wonder about the science behind it.
We will be testing Coca-Cola, Mountain Dew, Pepsi, and Sprite.