$25 to $50

Future engineers build a lightning-fast race car powered by nothing but air... no batteries or electric motor required! Curious kids get hands-on w...

It’s time to get medieval on physics! Build ten sleek and updated models of catapults and crossbows. These classic siege weapons from the middle ...

Get in the ring for learning about hydraulics with this set of 2 boxing bots! Future engineers will enjoy the focused work of this challenging 327-...

Begin a lifetime of scientific investigation and understanding with 29 fun experiments in five key areas: nature, physics, chemistry, air, and wate...

Future engineers enjoy the focused work of this 180-piece cyber hand build that teaches them about mechanical assembly and hydraulics. Once built, ...

Help outdoor play reach new heights - maybe even the exosphere?! - with this 100% kid-powered Stomp Rocket. From the award-winning Stomp Rocket fam...

For candy loving scientists, here's a fun way to experiment with physics in action! A step-by-step illustrated instruction manual guides clever kid...

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 ...