Question: Where do the clouds come from

Liam Taylor answered on 7 Nov 2018:

Very good question! The water that we see all around us! When it evaporates (turns from a liquid to a gas – this is how puddles in the road disappear), the molecules of water keep rising and rising and rising into the sky until they get too cold. Temperature decreases steadily as you get higher and higher. When they get cold, they begin to bunch together around microscopic bits of dust and dirt that are also in the sky and form a cloud. When the cloud gets big enough – it rains!

This all happens at a scale that is so invisible to humans. There are only a very small number of (very expensive) microscopes in the world that can see this.