Why do people think 37 degrees is a freezing point? Blame it on bad thermometers from the 1800s, when scientists were basically guessing and using their armpits for calibration. Or blame your uncle who heard it “on the grapevine” and now insists the ocean will freeze if it hits 37. Spoiler: it won’t, and he owes you a beer.
PPT - Polar Ice Jeanine Gelhaus 8 th grade science unit PowerPoint
There’s also a myth that cold-blooded animals freeze at 37°F. False—most frogs and turtles have antifreeze proteins that keep them alive at 32°F. They’re basically nature’s ice cream, but with less sugar and more existential dread.
Let’s Get Surprising for a Second
Here’s a fact that’ll blow your mind: water can freeze at 32 degrees in a vacuum, but at 37°F in a vacuum, it just boils. Yes, boils. Because low pressure makes water act like it’s on a spaceship’s revenge tour. So if you’re in space and your water is at 37°F, you’re not making ice cubes—you’re making a weird mist that will probably star in a sci-fi movie.
Also, pure water freezes at 32°F, but salt water freezes lower—around 28°F. So if your 37-degree question involves ocean water, the answer is double no. The ocean at 37°F is just a grumpy, not-frozen soup that makes sailors cry.
What Temperature Does Water Freeze? Science Explained