METALS
'(<a href="http://www.j-archive.com/media/2008-01-30_DJ_23.jpg" target="_blank">Cheryl of the Clue Crew uses a magnet on a beverage can and a food can.</a>)  In separating recyclables, a magnet is used because it will not attract <a href="http://www.j-archive.com/media/2008-01-30_DJ_23a.jpg" target="_blank">aluminum</a>, but will attract <a href="http://www.j-archive.com/media/2008-01-30_DJ_23b.jpg" target="_blank">this</a> metal, the main constituent of what we call tin cans'
steel