All About Reptiles | Animal Classification Science Unit | Self-Grading Digital Activity | 2nd-4th Grade No-Prep Dive into the world of reptiles with this no-prep, self-grading digital science unit designed for Grades 2–4! This engaging resource teaches students all about reptiles — their characteristics, classification, habitat, body structure, and how they compare to other animal groups. Perfect for use during your animals or classification unit, this interactive activity reinforces science c