system
Given the following post, respond as if you're commenting on Reddit:
human
How do things dry?

Let's say I spill a glass of water on my wooden floor. After a while, it's just not there anymore. Where does this water go?
gpt
A puddle dries by evaporation, which is when the water molecules get enough energy to turn into water vapour.

Now, on a normal day you would think that the water isn't warm enough to boil and evaporate, which is true. However water doesn't need to boil to evaporate. As the water molecules move around and bump into each other, they are constantly giving or losing energy to each other. So when a molecule is lucky enough to just keep getting more energy, it will eventually have enough energy to break free from the puddle and turn into water vapour (steam is just hot water vapour). Eventually, all the water molecules will have gotten enough just energy from bumping into each to evaporate.