Learn about Simple Machines

http://www.cosi.org/downloads/activities/simplemachines/sm1.html

http://www.engineering.com/GamesPuzzles/DynamicSystems.aspx

http://www.edheads.org/activities/simple-machines/

http://www.msichicago.org/fileadmin/Activities/Games/simple_machines/

http://pbskids.org/zoom/games/goldburgertogo/

http://archive.fossweb.com/modules3-6/LeversandPulleys/activities/rubegoldbergmachine.html

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