Science & Nature Kits

How cool is it that the mainspring stores energy, then converts it to motion? Discover the physics of potential and kinetic energy and the inner wo...

Welcome to the fascinating world of mechanical engineering! Make 8 motorized robots that move in different ways while exploring how each one uses g...

No batteries? Correct! Build 8 sun-powered robots including a crawling bug, a somersaulting armadillo, a roaring dino, a tank, drummer, and more wi...

Build your own mechanical hand, slip it on like a glove, and get a grip, without motors or electricity. It uses hydraulic power to simulate the mov...