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How Seashells Are Made

Learn more about CuriosityStream at https://curiositystream.com/reactions (CODE: reactions) If you know that seashells are made of basically the same stuff as chalk, you might have wondered why chalk is crumbly but seashells are super tough. This week on Reactions, we explain: The secret’s in the biochemistry. Subscribe! http://bit.ly/ACSReactions Facebook!   / acsreactions   Twitter!   / acsreactions   Instagram!   / acsreactions   Tumblr!   / acsreactions   You might also like: Burning Ice from the Ocean Floor    • Burning Ice from the Ocean Floor   Should You Pee on a Jellyfish Sting?    • Does Peeing on a Jellyfish Sting Make it S...   Is it OK to Pee in the Ocean?    • Is it OK to Pee in the Ocean?   Credits: Producer: Sean Parsons Writer: Alexa Billow Scientific Consultants: Ingrid Weiss, PhD; Michelle Boucher, PhD Executive Producer: George Zaidan Fact Checkers: Alison Le Music: “Samba Insobel” Kevin MacLeod (incompetech.com) Licensed under Creative Commons: By Attribution 3.0 License http://creativecommons.org/licenses/b... “Hard Boiled” Kevin MacLeod (incompetech.com) Licensed under Creative Commons: By Attribution 3.0 License http://creativecommons.org/licenses/b... Sources: https://onlinelibrary.wiley.com/doi/f... https://www.ncbi.nlm.nih.gov/pubmed/2... https://www.scientificamerican.com/ar... http://news.mit.edu/2015/why-seashell...    • How to Make a Seashell - Just Add Water!   http://www.elic.ucl.ac.be/textbook/ch... https://www.sciencedirect.com/science... https://pdfs.semanticscholar.org/pres... http://epod.usra.edu/blog/2009/10/sid... http://www.todayifoundout.com/index.p... https://www.thoughtco.com/calcite-vs-... https://www.mindat.org/min-307.html https://www.mindat.org/min-859.html http://www.webexhibits.org/causesofco... http://newscenter.lbl.gov/2008/11/25/...    • How Do Oysters Make Pearls?   Ever wonder why dogs sniff each others' butts? Or how Adderall works? Or whether it's OK to pee in the pool? We've got you covered: Reactions a web series about the chemistry that surrounds you every day. Produced by the American Chemical Society.