Thames & Kosmos

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...

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...

How many ways can you design a gumball machine? There's no limit here! Place the pieces in different configurations–turn the handle and see if your...

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

Read the fun story of two young engineers, Ty and Karlie Omega, and build simple models of the aircraft they discover on their hilarious family vac...

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 ...

An easy-to-read storybook and 53 different parts let preschoolers build 10 robots, while developing simple engineering skills. Follow the funny adv...