Molten metal is a liquid form of metal that occurs when it is heated to a high temperature, causing it to melt. This process is essential in various industries, including manufacturing and metalworking, where metals like iron, aluminum, and copper are transformed into usable shapes and products. The temperature at which a metal becomes molten varies depending on its type. For example, aluminum melts at about 660 degrees Celsius, while iron requires temperatures around 1,538 degrees Celsius. Once molten, metals can be poured into molds to create items such as tools, automobile parts, and construction materials.