The case of the Vanishing Footprints Take your students into the winter woods with The STEM Crew as they investigate a mysterious trail of disappearing footprints. In this Science Lab unit, students join Kathy, Kyle, Tait, and Jana on the Maple Grove Nature Trail, where strange tracks appear, vanish, and reappear in puzzling patterns. Through careful observation, hands‑on modeling, and real‑world science connections, students learn how animal adaptations, habitats, and movement patterns help exp