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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...

62 LEGO elements including axles, kinetics, and cranks, in this part craft/part builder set! Build 8 physics-driven bot creatures, using LEGO Techn...

A brilliant idea! They packed all the illuminating fun of this classic into a handheld board. Kids can follow 4 templates or peg their own designs....

A must have for any train lover, action packed with lights, sounds, and so many moving parts. 87 heirloom-quality pieces – even a harbor with a cra...

How cool is it that the mainspring stores energy, then converts it to motion? Discover the physics of potential and kinetic energy and the inner wo...