How Wood Frogs Survive Being Frozen Solid!

On a cold day, sometimes people will say "I'm freezing!," even though they aren't actually frozen like ice. But there is a very special animal that can say "I'm freezing" and mean it: wood frogs! Join Jessi and Squeaks to learn about the chilling way these frogs survive the winter! Science and Engineering Practices: Asking Questions and Defining Problems Disciplinary Core Ideas: PS1.A: Structure and Properties of Matter - Different kinds of matter exist and many of them can be either solid or liquid, depending on temperature. Matter can be described and classified by its observable properties. (2-PS1-1). PS1.B: Chemical Reactions - Heating or cooling a substance may cause changes that can be observed. Sometimes these changes are reversible, and sometimes they are not (2-PS1-4). Performance Expectations: 2-PS1-1. Plan and conduct an investigation to describe and classify different kinds of materials by their observable properties. 2-PS1-4. Construct an argument with evidence that some changes caused by heating or cooling can be reversed and some cannot. ---------- Love SciShow Kids and want to help support it? Become a Patron on Patreon: https://www.patreon.com/scishow If you have a question for Jessi, Squeaks, and Mister Brown you can write to them here: https://forms.gle/SENBjH9szoLGfrRC9 ---------- Looking for SciShow elsewhere on the internet? Facebook: http://www.facebook.com/scishowkids Twitter: http://www.twitter.com/scishowkids Instagram: http://instagram.com/thescishow SOURCES: https://www.units.miamioh.edu/cryolab/projects/woodfrogfreezing.htm https://www.nps.gov/gaar/learn/nature/wood-frog-page-2.htm https://jeb.biologists.org/content/181/1/245.full.pdf https://blog.nationalgeographic.org/2013/08/21/how-arctic-frogs-survive-being-frozen-alive/ https://van.physics.illinois.edu/qa/listing.php?id=1633&t=sugar-water-freezing