Here's a breakdown:

* Water vapor is the gaseous form of water that exists in the atmosphere.

* When the water vapor cools, it loses energy and its molecules slow down.

* This slowing down causes the molecules to clump together, forming tiny droplets of liquid water.

* This change from gas to liquid is called condensation.

Condensation is responsible for many familiar atmospheric phenomena, like:

* Clouds: Formed by condensation of water vapor around microscopic particles in the air.

* Dew: Formed by condensation of water vapor on cool surfaces.

* Fog: Formed by condensation of water vapor near the ground.

* Rain: Formed by condensation of water vapor within clouds, leading to the formation of larger droplets that fall to the ground.