water   Water is a gas when it is steam. It condenses to liquid, becoming water. It becomes solid when it freezes, and then becomes liquid again as it melts. The entire pro â¦ cess depends on temperature. The molecular structure of water does not change throughout all these changes.
Volatile Definition: Volatile refers to a substance that vaporizes readily. Volatility is a measure of how readily a substance vaporizes. By Anne Marie Helmenstine, Ph.D.
âº chemistry the curved surface of a liquid in a container, which can be either in if the molecules of the liquid are attracted to the container or out if the molecules are attracted to each other. (Definition of âmeniscusâ from the Cambridge Academic Content Dictionary Â© Cambridge University Press)