What happens when water heats up

The tiny particles that make up all solids, liquids, and gases are constantly in motion, but when they are heated up (that is, when heat energy is added to them) they move faster and faster and bump into each other more and more often, and with greater force. As a result of these collisions, the molecules in a.

It will eventually start to boil if it gets hot enough and turn into water vapor or steam.