Question

What are clouds made from and how do clouds form rain?

Answer 1

Clouds are not really made from anything since they're not really a material thing.

But the reason you see clouds is because the clouds are formed from water vapor that condenses into water droplets.

The water comes from the ground and then recycles back into the air and when that water vapor rises high up into the air it then reaches cold air and then the vapor turns back into droplets of water.