One of the goals of the Science Education Against Drug Abuse Partnership (SEADAP) is to increase student knowledge about drugs through the implementation of an inquiry-based curriculum. A science teacher who was a participant in the SEADAP program served as a facilitator for middle school students participating in an after-school program to assist them with designing their own experiment using planarians (flatworms) exposed to caffeine, sugar, and an energy drink. Results indicated that the average velocity of the planarians in 1 mM caffeine, 1 mM sucrose, and 0.1% Monster Energy drink increased in comparison to their behavior in spring water. The students also learned that substances such as energy drinks can be lethal to planarians.