This comprehensive collection of 30 fossils contains demonstration specimens of animal phyla and plants from the Paleozoic, Mesozoic, and Cenozoic periods.
The collection comes complete with a descriptive key sheet and geologic time chart.
Discover a world of kaleidoscopic effects within this perfectly clear prism of the Light Crystal!
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.
Use this awesome prism to teach about optics and light in the classroom setting!
Check out this high-quality gyroscope!
This beautiful candle holder is carved out of natural amethyst!
View the glory of space with this hi-tech telescope set!