Why water is really, really weird | BBC Ideas?

Water is like a shape-shifter that can be solid, liquid, or gas, and it does some strange things when it changes form.

Water expands when it freezes, which means ice floats on top of water. Most things shrink when they cool down, but water acts differently, kind of like how your balloon gets bigger when you blow more air into it, instead of shrinking. This is why icebergs float, and why lakes don’t freeze all the way to the bottom.

When water becomes a gas, like steam, it becomes lighter, so it rises up, just like hot air from a balloon. But when water turns into ice, it gets heavier in some ways, making it less dense, which is why ice floats.

When you cool down water, the molecules slow down and arrange themselves neatly, kind of like how kids line up nicely for lunch. But when you heat it up, they move around more, acting like kids who are all excited and running everywhere.

Water is weird because it doesn’t always behave the way we expect, but that makes it super special! Water is like a shape-shifter that can be solid, liquid, or gas, and it does some strange things when it changes form.

Water expands when it freezes, which means ice floats on top of water. Most things shrink when they cool down, but water acts differently, kind of like how your balloon gets bigger when you blow more air into it, instead of shrinking. This is why icebergs float, and why lakes don’t freeze all the way to the bottom.

When water becomes a gas, like steam, it becomes lighter, so it rises up, just like hot air from a balloon. But when water turns into ice, it gets heavier in some ways, making it less dense, which is why ice floats.

When you cool down water, the molecules slow down and arrange themselves neatly, kind of like how kids line up nicely for lunch. But when you heat it up, they move around more, acting like kids who are all excited and running everywhere.

Water is weird because it doesn’t always behave the way we expect, but that makes it super special!