Thames & Kosmos 550038 Springbots STEM Kit | Build 3 Spring-Powered| Race Car, Walking Robot, Countdown Timer Powered by a Mainspring | Learn about Potential & Kinetic Energy

The Thames & Kosmos Springbots STEM Kit is an educational toy that allows children to build three different spring-powered machines: a motorized robot, a race car, and a countdown timer. What makes these machines unique is that they run without any batteries or electrical power. Instead, they are powered by a mainspring, a spiral-shaped spring that stores energy when wound up by hand and then converts that energy into motion. The mainspring inside the robot turns gears, allowing it to march forward on two legs. The race car zooms across the floor as its mainspring uncoils and turns its wheels. With the countdown timer, children can learn about potential and kinetic energy as they wind up the mainspring and watch the timer count down. This STEM kit also introduces children to the concepts of gears and springs, making it a fun and educational toy for young learners.