$20 to $50

Bring snow inside... any time of year, no matter where you live! Kids enjoy the magic of cool snow-based experiments and learn about weather along ...

Google "orrery" because you'll be building one, winding it up, then watching planets orbit the sun at their own speed! Explore gear mechanics as yo...

Turn any room into a planetarium for astronomers in training! Give them sweet dreams of travel through space: this projector displays either a rota...

Get future engineers on track for STEM learning with this model train set of the future! They'll enjoy the focused work of building this 186-piece ...

Build a mesmerizing, decorative lamp that changes colors and mimics the undulating movements of a jellyfish in the water. Lock different componen...

Future engineers fly into physics fun building 5 awesome models driven by a rubber band powered propeller. Using ultralight plastic and bamboo part...

SALTWATER FUEL CELL ROBOT

If you're raising a future James Bond or Sherlock Holmes, your young secret agent needs the high-tech help of a secret voice recorder. Spies strap ...

No batteries? Correct! Build 8 sun-powered robots including a crawling bug, a somersaulting armadillo, a roaring dino, a tank, drummer, and more wi...

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...

Peer around corners, into tight spaces, and even under water with the only flexible digital spy scope designed especially for aspiring young spies ...

If you're raising a future Sherlock Holmes, your young detective needs all the tools of the trade. Help them crack the case on any mystery with thi...

Curious kids experiment with strength and stability, building 20 models that demonstrate mechanical physics or structural engineering principles. T...

Curious kids experiment with strength and stability, building 20 models that demonstrate mechanical physics or structural engineering principles. T...

Encourage future astronomers to explore our solar system in a delicious way: making gummy lollipop planets! As they prepare these yummy treats, you...

Harry, Ron, and Hermione call it Potions Class; we call it Chemistry Class! Wizards in training can follow the storybook manual as they brew up fiv...

Travel deep into the microscopic realm! With this high-quality student microscope, Thames & Kosmos unlocks wonders of the world that are too sm...

If your tween or teen has a fascination with all things steampunk - or trains in general - then this kit is for them! Young engineers put on their ...

Finally, an adorable robot! When kids assemble the 172 pieces, they won't realize they're learning about gears, motors, and sound sensors. They wil...

ULTIMATE SPY SLEUTH 1 - MASTER OF SURVIELLANCE

Construct your air-powered robotic hand that fits like a glove and prepare to blast off! This amazing engineering project uses pressurized air and ...

No batteries? Correct! Build 6 water-powered vehicles including a jet boat, water gun, rocket car and more with this cool kit. The 32-page full-col...

Wind is one of the most promising sources of clean, renewable energy available today. With this kit, you can assemble a realistic wind turbine com...

Journey through the amazing world of science with 100 eye-popping, jaw-dropping experiments that make you say “WOW!” This comprehensive kit will ex...