Congelation ice

Congelation ice is when water freezes by getting really cold. Water is this clear liquid we drink when we are thirsty or use to take a bath. Imagine that water gets really, really cold, even colder than when you put it in the freezer to make ice cubes. When it gets THAT cold, it will freeze into solid ice that's used for many things like skating or making snow cones.

Here's how it works. When water gets really cold, the tiny things inside it called molecules slow down and get snug together. This makes the water molecules turn into a shape we can touch and hold, called ice. Congelation ice specifically happens when really cold air cools the top layer of a lake or river, which then freezes slowly over time as more water cools and freezes underneath. This is the kind of ice you might see when people are skating on frozen bodies of water, or when you visit a snowy place and see icicles hanging off the roof. It is important to remember that while this ice can be fun to play on, it is also important to be careful and make sure it's safe before you go out and have fun!

So, that's what congelation ice is -- water that gets really cold and freezes into solid ice that's great for winter fun!