$25 to $50

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 ...

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

Get ready for a jaw-dropping adventure like no other with the VR Shark Lab Kit! Dive into the world of these incredible creatures with the 40-page ...

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

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 ...