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A pot of learning gold at the end of this rainbow! Discover the science of light and optics while building a real rainbow machine and performing 8 ...

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

Welcome to the fascinating world of mechanical engineering! Make 8 robotic animal characters including: a unicorn, sea otter, fox, bear, baby llama...

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...

Start your own rock collection and even grow your own geode. This STEM-focused kit comes with a labeled tray, plus a book with lively illustrations...

What's cooler than building a bot? Building 8 of 'em! A 48-page, full-color book guides the assembly, and a compact solar panel gives them power. T...