If you’re looking to apply learning in adaptations, habitats, food chains and food webs, life cycles, genetics & heredity, evolution, and/or human body systems, this STEM or STEAM challenge is a perfectly engaging way to get the job done joyfully! It’s the perfect Halloween or spring STEM activity, but it works any time of the year to connect to your life science standards! The basic idea: Students work in individually or in partners or groups against a list of criteria and constraints to c