So, water freezes at 0 degrees Celsius. That’s it. No drama, no decimals (usually). It’s the temperature where liquid water throws up its hands and says, “Fine, I’ll become a solid.”
But here’s the sneaky part—water can actually stay liquid a bit below zero if it’s super pure or not disturbed. That’s called supercooling. It’s like water playing hard to get. “You want ice? Make me shiver first!”
Usually, though, any impurities (like dust or a little shake) make it freeze right at 0°C. So, 0°C is like the party guest that always shows up on time.
Why Celsius Chose Zero
You might wonder: “Did some scientist just pick a random number?” Nope! The Celsius scale was designed so that 0°C is the freezing point of water at sea level. How considerate, right?
Anders Celsius, the guy behind it, was like, “Let’s make this super intuitive for humans.” He set 0 as freeze and 100 as boil. That’s why your ice cubes don’t form at 37.8°C. Thank you, Anders!
So, whenever you see a puddle turn to ice, you’re watching history and science high-five. Pretty cool, huh?
