$25 to $50

Climate and weather on Earth affects us all. Learn about greenhouse gasses, rainfall, glaciers, rising oceans, wind and more with these 18 eye-open...

Crime Scene Investigation done just like real detectives with this 66 piece kit, full of tips and explanations behind the forensic techniques. Safe...

Discover how water powers the world with this hands-on science kit. Build a waterwheel, sawmill, and hydroelectric power station while learning abo...

Intro to Engineering introduces children to engineering through 21 hands-on experiments and building projects. Kids learn engineering basics with l...

Unlock a passion for discovery with 29 engaging experiments across five essential science domains: nature, physics, chemistry, air, and water. Youn...

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

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...

What's cooler than building a bot? Building 8 of 'em! A 48-page, full-color book guides the assembly, and a compact solar panel gives them power. T...

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...

Come face to face with the Great White Shark, Hammerhead, Reef Shark and more in stunning virtual reality! Includes a Megaladon fossil dig out acti...

The power of wind makes them go - and you'll have fun building 6 awesome bots that move without any batteries at all. Easy, snap-together assembly ...