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This interactive track system harnesses the power of gravity, using over 100 components. What path will your marble take, as you design different h...

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

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...

Who said chemistry is boring? How about creating an underwater volcano or a rainbow in a test tube? This amazing lab is the real deal, with cards f...

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