gas vapors
Most solids become liquid at their melting point. Heat water above 0°C, or iron above 1,535°C, and they will become a liquid.
A heated liquid will become a gas.
liquid - depending on what the solid was to start with
When you heat a liquid and it changes phase it becomes a solid.
A solid, when sufficiently heated, can either become a liquid (melting) or can be converted directly into a gas (sublimation).
In order for a liquid to become a gas, the particles in the liquid have to heat up enough to separate and further themselves out from each other. Bobette la Baleine : That's what I said in a shorter way.
Gas
They change phase. For example, upon absorbing heat, a solid can become liquid, and a liquid and become a gas. Vice versa when releasing heat.
When you heat a liquid, it turns into a gas through a process called evaporation or vaporization. The heat increases the kinetic energy of the liquid particles, causing them to break free from their liquid form and become a gas.
A liquid becomes a solid when there is less heat. When a liquid loses heat, its particles slow down and come closer together, eventually forming a solid structure.
heat the liquid up to its boiling point
The liquid may boil and become a gas.