* Vapor: Water molecules in the vapor state are moving rapidly and are far apart from each other. They have high kinetic energy.
* Condensation: When vapor condenses back into liquid, the molecules lose energy. This can happen in a few ways:
* Cooling: The vapor can cool down, causing the molecules to slow down.
* Collision: When vapor molecules collide with a liquid surface, they can transfer some of their energy to the liquid molecules, causing them to slow down.
* Liquid: In the liquid state, the molecules are closer together and move more slowly, with lower kinetic energy.
Think of it like this: Imagine a bunch of energetic kids running around (gas). When they get tired and slow down, they gather together in a group (liquid).
