Our friends at the Ohio Resource Center
have done a great job pulling together resources for grade K-12 on understanding and teaching about the oil spill in the Gulf. The resources are split into grade bands and a short podcast introduces ideas on how teachers can use an Earth science systems approach to incorporate oil spill activities into their instruction.
ORC on Oil Spills - http://www.ohiorc.org/orcon/oilspill/default.aspx
Have you found any other resources you think would be appropriate for the middle school classroom? Please share them!