When water molecules do this, they change from liquid water to water vapor – a gas. This changing from a liquid to a gas is called evaporation. Heating a liquid causes the water molecules to move ...

Cheeky. When water is heated up, it changes state from a liquid to a gas, called steam. And this process is called evaporation. When a gas cools down, it can change state back into a liquid.

The focus is that matter, whether solid, liquid, or gas, is made up of particles; that dissolving and evaporation happen at the particle level; and that models can help explain these processes that we ...

All materials enter the vapor phase through evaporation (liquid–gas) or sublimation (solid–gas). The vapor pressure of solid and liquid compounds can be useful in determining the thermodynamic ...