Under $20

Gecko Run takes classic marble runs to the next level with new creative challenges and less restrictive building requirements. This innovative marb...

Gecko Run takes classic marble runs to the next level with new creative challenges and less restrictive building requirements. This innovative marb...

Gecko Run takes classic marble runs to the next level with new creative challenges and less restrictive building requirements. This innovative marb...

Lost your marbles? Get more! This is a pack of 7 metal replacement marbles for the Gecko Run marble run system.

Inspired by her popular Wild Thing podcast, journalist Laura Krantz incorporates the scientific method and her journalistic skills to determine if ...

Curious kids have a blast learning how projectiles work and building their own catapults, slingshots, and crossbows with this kit. Following the gu...

It's pure bottled magic! A science experiment kit that's as much fun as a bubbly soda!Pop Bottle Science presents 79 easy, hands-on experiments th...

Fans of Chris Ferrie's ABCs of Biology, ABCs of Space, and Quantum Physics for Babies will love this introduction to aerospace engineering for babi...

GOOOOAAAALLLL! Enjoy active play indoors even on rainy days! This super soccer ball is shaped more like a UFO and hovers magically over wood, lamin...

It’s hands-on science with a capital “E”—for engineering. Beginning with the toppling of the Colossus of Rhodes, one of the seven wonders of the an...