1. Steel industry: The steel industry uses melting in matter to extract iron from iron ore and convert it into steel. Iron ore is heated in a blast furnace, where it melts and combines with coke and limestone to produce molten iron and slag. The molten iron is then further processed to remove impurities and make steel.

2. Glass industry: The glass industry uses melting in matter to produce glass from raw materials such as sand, soda ash, and limestone. These raw materials are heated in a furnace until they melt and form molten glass. The molten glass is then shaped and cooled to produce various glass products.

3. Aluminum industry: The aluminum industry uses melting in matter to extract aluminum from bauxite ore. Bauxite ore is heated in a kiln to produce alumina, which is further processed to produce aluminum metal. The molten aluminum is then cast into various shapes and used to make a wide range of products.

4. Copper industry: The copper industry uses melting in matter to extract copper from copper ore. Copper ore is heated in a furnace to produce molten copper, which is then purified and cast into various shapes. The copper is then used in various industries such as electrical, construction, and transportation.

5. Semiconductor industry: The semiconductor industry uses melting in matter to produce semiconductors, which are used in electronic devices. Silicon wafers are heated in a furnace to create a molten layer, which is then doped with impurities to control its electrical properties. The resulting semiconductor wafers are then used to make integrated circuits (ICs) and other electronic components.