Used in everything from bullet-proof vests to the walls of the Pentagon, polyurea’s strength comes from its long-chain molecules.
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Categories: Gr 4-6 Science & Tech
Most children are fascinated by space and the idea of space exploration. As this activity will demonstrate, space-related technology brings together many different scientific... read more
Categories: Gr 4-6 Science & Tech
A gear is a toothed wheel that connects or meshes with another gear. It is used to transmit forces in machines that range from something as small as a watch to something as large as the locks on a... read more
Categories: Gr 9-10 Science, Gr. 11-12 Chemistry
https://youtu.be/_m4Z3mSgS18 What has the highest melting point known to us? Hank Green explains in this episode of SciShow. This episode is brought to you by Audible. Go to Audible.com/SciShow... read more
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