STEM

Design your own gumball machine with endless creative possibilities! Arrange the pieces in unique configurations, crank the handle, and test your e...

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...

Turn rough rocks into polished gems. Our powerful tumbling machine features a strong motor, and includes a leak-proof rubber barrel, a timer, 9 dif...

Learn the fundamentals of mechanical physics by building and testing all six classic simple machines—wheels and axles, levers, pulleys, inclined pl...

Grow science right on your desk! This miniature gardening kit lets kids plant seeds in teeny pots and watch them sprout in the self-watering greenh...

A truly mesmerizing marble-track experience! Each set is made up of hollow stacking cubes and a variety of perfectly flat tracks. The paths cut out...

Stack hollow cubes to magically propel stainless steel marbles down a track for a truly mesmerizing experience! Eighteen special tracks grow wider ...

A truly mesmerizing marble-track experience! Each set is made up of hollow stacking cubes and a variety of perfectly flat tracks. The paths cut out...

Learn how the DIFFERENTIAL works: The Differential is a stylized educational model, an interactive study guide to the mechanism, only for learning ...