Please watch this video to learn about how to identify which kind of change is which.
Go to ChangeLab at the link below and test your knowledge of chemical and physical changes.
http://vital.cs.ohiou.edu/steamwebsite/downloads/ChangeLab.swf
If you got 100% right on the ChangeLab, you are all set! If not, read through the information at the link below and then go back and retake the ChangeLab quiz.
http://www.learner.org/courses/essential/physicalsci/session4/closer1.html