In this activity, young scholars will have an opportunity to solve a mystery. They will discover why a soda can collapses during a demonstration due to the effects of changes in temperature and atmospheric pressure. Students will gain further insight in the process of scientific inquiry as they suggest questions that need to be answered in order to solve the mystery at hand.This lesson plan was created as a result of the Girls Engaged in Math and Science, GEMS Project funded by the Malone Family Foundation.