| If a solution remains undisturbed as it is cooled, it often passes the point at which it would normally crystallize, reaching a supercooled state. The same is true for a solution containing a maximum amount of solute; if it assimilates additional solute, it is termed supersaturated. In both instances, if a tiny crystal, called a seed crystal, is added to the solution, a sudden chain reaction occurs, as shown here, and crystal growth is dramatic. |