The process where water changes from its gaseous form (water vapor) into liquid form is called condensation.

Here's a breakdown:

* Water vapor: This is the gaseous form of water, invisible to the naked eye.

* Condensation: As water vapor cools down, its molecules slow down and lose energy. This causes them to clump together, forming tiny water droplets.

* Formation of clouds: Condensation in the atmosphere is a key factor in cloud formation.

* Other examples: Condensation also happens when you see water droplets form on a cold glass of water, or when fog forms on a cool morning.

Let me know if you want to know more about condensation or any other related topics!