Your environmental role is to use the provided likes to research the following materials. Rememeber, how do they effect our environment? 1.)Aluminum 2.)Glass 3.)Steel Here's a hint. Jot down some notes as your searching. This will help you get an idea of how you want the order of your materials. You won't have to keep going back and forth.
Benefits of Aluminum Recycling http://www.earth911.org/master.asp?s=lib&a=aluminum/benefits.asp
Recycling Aluminum http://www.eia.doe.gov/kids/energyfacts/saving/recycling/solidwaste/metals.html
Recycling Glass http://www.eia.doe.gov/kids/energyfacts/saving/recycling/solidwaste/paperandglass.html
Recycling Glass http://www.panda.org/news_facts/education/middle_school/homework_help/project_ideas/index.cfm?pjid=7
Steel Recycling http://www.green-networld.com/tips/steel.htm
Recycling Steel http://www.mines.edu/stu_life/organ/earth/steelfl.html