Perform the classic rotational inertia physics experiment with this set. Race these two down an inclined plane and let your students predict which one will reach the bottom first. Both ring and disk have equal mass and radius but different mass distribution.
This SUPER Erector Construction set is one of the best you'll find anywhere!
The Star-Ball Magnetic Puzzle is the perfect creativity tool for innovators, artists, writers, students, and you!
Build over 60 projects with this deluxe version of the Snap Rover kit!
This glass Erlenmeyer mug makes an excellent gift!
Make the coolest 3D pin art on your desk with this amazing desk toy.
This superb chemistry set features 350 mind-boggling experiments!