00:01
All right, so let's talk about water.
00:06
And here's something that's really important for life is that water is one of the few chemicals where the solid form, so here i'm drawing some ice cubes, will actually float on top of the liquid form.
00:21
For most things, they would just sink.
00:23
So maybe we have a different chemical right here.
00:25
Maybe this is dcm or something else.
00:29
Just some other chemical, doesn't matter what it is.
00:32
Put ice cubes on top, they would sink to the bottom and eventually just be down here.
00:39
However, water doesn't do that.
00:41
Now, the reason for that is when we have our water molecules, i'm just going to draw a few h2o molecules here.
00:48
When they're in the liquid form, they're actually moving past each other really quickly, and they don't have, they don't have the sort of time to, actually, this right here would be repelling, and then this right here would be attracting, and right, the opposite sides will always attract...