Traditionally, science fair projects allow students to share their personal investigations about nature. In a science fair presentation, a student typically lectures, pointing out observations, data, analysis, and conclusions to a disinterested audience likely to be overwhelmed with all the new scientific information—not the ideal environment for effective learning. With this in mind, the author developed a science fair alternative that required students to create their own exhibits and then use them to teach science to elementary students. As a result, students would reinforce their own scientific knowledge.