Looking for engaging, developmentally appropriate STEM lessons for preschool? This Preschool STEM Curriculum includes 20 hands-on science and engineering lesson plans designed for ages 2–4. Each lesson supports inquiry, language development, and active exploration. Topics include: Anatomy (senses, bones, heart, lungs)Biology (flowers, animals, life cycles)Earth Science (rocks, fossils, weather, dinosaurs)Engineering (bridges, towers, boats, playground design)Physics (motion, ramps, push & pull)C