A popular lab, with a competitive twist! Educators, your students will have tons of fun learning/reviewing the phases of the moon with this engaging activity. Instead of simply cutting the cream out of each cookie, students will be tasked with a challenge (against their peers) for each of the 8 phases of the moon. I've also included a student version of the slides so that they can insert a photo of each phase they create. Why? Well, we all know that those cookies will not last very long at the e