Rotate this 6.5 inch kaleidoscope to experience a constantly changing view of the world. With the ability to show amazing colors and shapes, the outside design reflects an old world charm. Excellent for use as as stocking stuffer or party favor.
The Hoberman Sphere expands and contracts with a magical motion so fluid and simple that kids can't help but play with it for hours.
Learn about hydrogen fuel cells with this incredible kit!
Build over 100 exciting electronic projects with this easy to use kit!
This high precision gyroscope will amaze you with rotational speed and ease of precision.
See the solar system in action!
Ever wonder how to survive in the wilderness? These cards can help!
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