These kids stem building kits can serve as science educational models toys or be used for DIY STEM Projects. 7-in-1 Kids STEM Science Kit: This STEM toy for ages 8-13 includes Newton’s Cradle, Telegraph, Fruit Battery, Electric Buoyancy Ball, Newton’s Color Wheel, Spin Art Machine, and Launch Flying Saucers, offering 7 exciting science experiments for kids 9-12 to spark kids’ curiosity in science, engineering, and physics.（The Electric Buoyancy Ball, Newton’s Color Wheel, Spin Art Machine, and Launch Flying experiment all share a single electric motor kit.） STEM Projects for Kids Ages 8-12: Our STEM kits for kids age 8-10 10-12 enhances problem-solving skills, creativity, and hands-on learning through fun experiments. Ideal STEM Toys for boys girls age 8-13.