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All aboard! Put on your engineer’s cap and build your own steampunk-style train robot with amazing steam effects. You can build your TrainBot in tw...

A Wild Environmental Science kit for kids who love crystals and rocks!  Observe chemical reactions, grow crystals and learn about cave environme...

Think of this as an analogue robot. Wood and string combine to make a precision grabbing device. The builder controls the bot with levers and str...

Wood and hydraulics combine into a robotic kit that can be built in a hour. Everything you need to build is included: Precut wood pieces, plastic...

Build five fun gadgets and learn about gears and transmissions. Create a helicopter model with a rotor that spins using a rubber band-powered motor...

Make a Rube Goldburg-like contraption to fling objects with abandon. This kit has everything from hydraulics to propellers. Boing! Fling! Wow! 

Build six awesome bots that move without any batteries or electricity. The secret behind these fascinating machines is one of the oldest power sour...

Mix up a rainbow of mouth-wateringly delicious lip balms and lip glosses. Experiment with a vibrant spectrum of colors and flavors to create your o...

Build a zany inflatable tube dancer that uses the physics of flowing air to perform its eye-catching moves. Like the air dancers and tube men you m...