The process of converting a solid to a liquid is called melting. Melting occurs when a solid substance reaches its melting point, the specific temperature at which its molecules gain enough energy to break free from their fixed positions and transition into a liquid state. This process is essential in various natural and industrial contexts, such as the melting of ice into water or the melting of metals for casting. The reverse process, where a liquid becomes solid, is known as freezing. Melting plays a significant role in geology, manufacturing, and even culinary arts, as it transforms materials for diverse uses.