What is the process of water converting to water vapour called?

As the suns rays heat the water the particles in the water start to speed up. As this happens the water converts to water vapour and this process of converting water into vapours is called evaporation.

Vaporization of an element or compound is a phase transition from the liquid phase to gas phase. There are two sorts of vaporization: evaporation and boiling.

Evaporation is a phase transition from the liquid phase to gas phase that occurs at temperatures below the boiling temperature at a given pressure.

Boiling is a phase transition from the liquid phase to gas phase that occurs at or above the temperature the boiling temperature.