What is the process called when vapor turns into liquid?

The process in which vapor turns into liquid is known as condensation. This occurs when water vapor in the air cools and changes back into liquid water, typically forming droplets. This process can be observed in everyday situations, such as when dew forms on grass in the morning or when water droplets accumulate on the exterior of a cold glass.

In contrast, evaporation refers to the process where liquid turns into vapor, while precipitation involves any form of water, such as rain or snow, falling from the atmosphere to the ground. Filtration pertains to the method of separating solids from liquids or gases using a filter, and is not related to the change of state between vapor and liquid. Understanding these processes and their definitions is crucial in fields like meteorology and environmental science.