Talc is a clay mineral that, along with corn starch, was the primary ingredient of baby powders, often called simply talcum powder when talc was the main agent. Talc is aso notable for its identificaion as the lowest possible hardness on the Moh's scale. With a value of 1, talc is so soft that it can be scratched by a finger nail.
Included: one 1" chunk of talc
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.
This is a classic demonstration toy of the powers of magnetic fields!
This magic bird defies gravity before your very eyes!
This SUPER Erector Construction set is one of the best you'll find anywhere!
This high precision gyroscope will amaze you with rotational speed and ease of precision.
This classic device is used to demonstrate the conservation of mechanical energy.
At xUmp.com you will find a large selection of scientific products carefully curated by real scientists and educators. We sell everything from educational toys, teacher supplies for science classroom, lab equipment, science toys, science fair supplies, classroom equipment, chemistry glassware, chemistry lab equipment, physics demos, electronics supplies, robots, science kits to geeky science gifts.