FOR IMMEDIATE RELEASE | Thu Jun 07 13:17:00 EDT 2018

Why seashells are tougher than chalk (video)

WASHINGTON, June 7, 2018 — Seashells are made mostly of calcium carbonate, also known as chalk, a mineral soft and crumbly enough to use for sidewalk doodles. Yet seashells are tough and resilient. In this video, Reactions explains why seashells are so different, and why you can’t use them to draw on your driveway: https://youtu.be/iUeMxjkSPyM.

Youtube ID: iUeMxjkSPyM

Reactions is a video series produced by the American Chemical Society and PBS Digital Studios. Subscribe to Reactions at http://bit.ly/ACSReactions and follow us on Twitter @ACSReactions.

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Note: ACS does not conduct research, but publishes and publicizes peer-reviewed scientific studies.

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