The term for the change of a substance from liquid to solid due to a temperature decrease is freezing or solidification. During this process, the molecules of the liquid lose energy and slow down, resulting in a structured arrangement that characterizes the solid state. Freezing occurs at a specific temperature known as the freezing point, which varies for different substances. For example, water freezes at 0°C (32°F). This process is vital in nature and various industries, affecting everything from climate patterns to food preservation methods.