Scrap metal refers to discarded metal materials that can be recycled and reused. Common sources include old appliances, vehicles, and construction debris. Metals like aluminum, copper, and steel are often collected for their value and can be melted down to create new products. Recycling scrap metal helps reduce waste and conserves natural resources. The process involves collecting, sorting, and processing the metal before it is sold to manufacturers. This not only minimizes environmental impact but also supports the economy by creating jobs in the recycling industry.