The Gravitrax interactive track system harnesses the power of gravity, physics, and engineering in a unique marble-run. Enhance the adventure with ...
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Marble racing is all the rage! This interactive track system harnesses the power of gravity, physics, and engineering, with 100+ components. Dip, j...
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Program this remote-control walkie-talkie bot to talk, move in all directions, disguise your voice, and make hilarious sound effects! It even has a...
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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...
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This amazing lab is the real deal! Create an underwater volcano, or a test tube rainbow, or do any of the 20 safe, educational experiments. This wi...
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