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Build and experiment with dozens of roller coaster models to make learning the physics of force, motion, and energy as fun as a day at the amusemen...

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...

Discover the science of living things with this complete introductory microscope kit. The beautifully illustrated experiment manual guides you thro...