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
$69.99
$49
This is a great clean heat demonstration model for the classroom setting!
$129.95
$75
The Wimshurst Machine is a high quality static machine for student labs.
$49.99
$36.99
Build an electromagnet, an electrical catapult, a doorbell chime, a telegraph, and more with this kit!
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