This is not your ordinary sphere. By lightly grabbing two ends of the sphere and pulling, you can make it expand from 5.5 inches to a whopping 12 inches! The Mini Hoberman Sphere is a great way to have fun and teach adults and children about geometry at the same time. The sphere includes a game and activity sheet to help you explore all kinds of interesting ways to use it!
This high precision gyroscope will amaze you with rotational speed and ease of precision.
Get one of the craziest and coolest kaleidoscopes around!
Comprehensive collection of 30 fossils.
Great tarantula specimen for the science classroom!
Defy gravity with this cool balancing eagle!
Build your very own smart robot!