Why Do We Blink?

From the creator

Ever have a staring contest? Why is it so hard?! Jessi answers a question from a curious SciShow Kids viewer: Why do we blink? ---------- Like SciShow? Want to help support us, and also get things to put on your walls, cover your torso and hold your liquids? Check out our awesome products over at DFTBA Records: http://dftba.com/SciShow Or help support us by becoming our patron on Patreon: https://www.patreon.com/scishow ---------- Looking for SciShow elsewhere on the internet? Facebook: http://www.facebook.com/scishow Twitter: http://www.twitter.com/scishow Tumblr: http://scishow.tumblr.com Instagram: http://instagram.com/thescishow SOURCES: https://www.highlightskids.com/science-questions/why-do-we-blink http://kidshealth.org/kid/talk/qa/eyes_water.html?tracking=K_RelatedArticle https://faculty.washington.edu/chudler/chreflex.html

Published 2015-05-21 · Watch on YouTube ↗
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