Why should we study magnets? Magnets are all around us. The earth is a giant magnet! It has a north and a south pole. There are natural magnets made out of a certain kind of rock. There are manmade magnets made of steel. Steel has iron in it. Manmade magnets have north and south poles too. There are special manmade magnets called electromagnets. Without electromagnets, we would not have televisions, lights, computers, telephones and we could not start our cars! Can you imagine a world without electromagnets?!