Explore and discover how science, technology, engineering, and maths shape the world around us with 25 hands-on experiments for curious kids. From racing wind-up cars and building a sturdy sandcastle to creating a wave machine and making music with a homemade guitar, STEM Lab is packed with 25 exciting STEM activities. Why do rafts float? How do bridges stay upright? How do seals stay warm? And how can you make a ball levitate? Each activity in the book has its own "How it works" section uncovering core STEM ideas to help young readers discover the fascinating answers for themselves.