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.
1 Historical volatility â price changes from one dayâs close to another; 2  Intraday volatility â price changes within a market session, regardless of whether there are price changes from close to close; and. 3  Implied volatility â forward-looking measure of potential volatility, derived from analysis in the options markets.