Here's a breakdown:

* Vapor: A substance in its gaseous state.

* Liquid: A substance in a state where molecules are close together but can move around freely.

During condensation, the vapor molecules lose energy, usually by cooling down. This loss of energy causes them to slow down and come closer together. As they get closer, they experience stronger intermolecular forces that pull them into a more compact liquid state.

Here are some examples of condensation:

* Dew forming on grass: Water vapor in the air cools down overnight, condensing into liquid water droplets.

* Fog forming: Water vapor in the air condenses around tiny particles, creating a dense mist.

* Rain forming: Water vapor in the air rises, cools down, and condenses into clouds. When these clouds become saturated, the water droplets fall as rain.

* Steam from a kettle: As hot water vapor escapes the kettle, it cools down in the air and condenses into visible steam.