Why don't Oceans Freeze? Are Icebergs Made of Salt water or Fresh water?

Oceans stay liquid even when it gets cold because they have salt in them, and icebergs are made of fresh water, not salt water.

Imagine you're making a big bowl of soup. If the soup has no salt, it freezes faster than if it had salt. The same thing happens with oceans, the salt lowers the freezing point, so they don’t freeze as easily. That’s why even in winter, most of the ocean stays liquid, like a giant, never-ending bath.

When parts of the ocean get really cold, ice forms and breaks off to become icebergs. But this ice is made from fresh water, not salt water. Think of it like when you freeze a glass of water, the ice that forms inside is just water, not the salty stuff from outside.

So even though oceans have salt, they stay mostly liquid, while icebergs are like giant cubes of fresh water floating around, like big, cold ice cubes in a salty drink!