Science & Nature

Build and rebuild these little turbo machines then bring them to life with a r-r-ripcord, no batteries needed! Hands-on learning at its best, with...

Google "orrery" because you'll be building one, winding it up, then watching planets orbit the sun at their own speed! Explore gear mechanics as yo...

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...

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

All time favorite way to play for kids is watering their corner of the Earth and helping out in the garden. Quality tools make a job much more enjo...

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...

Marble racing is all the rage! This interactive track system harnesses the power of gravity, physics, and engineering, with 100+ components. Dip, j...

Kids have been hunkering down in homemade forts since time began, and here's a set that kicks it up a notch. Just connect 25 glow-in-the-dark balls...