The document describes an experiment where Mentos are dropped into a 2-liter bottle of Coke. The student hypothesized that the soda would explode up to 2-3 cm high. However, the results showed that the stream of Coke shot over 1 meter into the air and disappeared quickly. The conclusion is that Mentos and soda will explode depending on the number of Mentos used, and the student's prediction of only 2-3 cm was incorrect.