Metals have been used for a long time. Copper was actually one of the first metals to be used and it helped to move forward from the Stone Age. One of the many things copper was used for is the development of different transportation methods such as cars and trains. With these vehicles people could reach places faster, basically saving time. This is one of the reasons it was a very important discovery. Another function of copper is using it in activities like plumbing and roofing because of its water resistant ability. It is also used for transferring electricity and creating power, which is the key to many electrical inventions. One more property of copper is being reusable, which allows