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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The Science Teachers Association of Ontario adds new resources, blog posts, videos and more on a regular basis.
Categories: Gr 9-10 Science, Gr. 11-12 Biology, Gr. 11-12 Chemistry
https://youtu.be/xANGsTqxdUw Reactions is joining PBS Digital Studios! Woohoo! To celebrate, we're doing a deep dive on the surprisingly complex and beautiful chemistry behind our favorite morning... read more
Categories: Gr 7-8 Science & Tech, Gr 9-10 Science, Gr. 11-12 Chemistry, Gr. 11-12 Physics
https://youtu.be/RnvCbquYeIM Every year, the world uses 35 billion barrels of oil. This massive scale of fossil fuel dependence pollutes the earth, and it won’t last forever. On the other hand, we... read more
Categories: Gr 4-6 Science & Tech, Gr 7-8 Science & Tech, Gr 9-10 Science, Gr. 11-12 Biology
https://youtu.be/sMCgOQj37IY All mammals have hair at some point in their lives, but none of them wear it quite like humans. Why does our hair grow where it does, and not grow where it doesn’t?... read more
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