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Direct linkHarris, Mary E.; Walker, Barbara – Journal of Chemical Education, 2010
In this Activity, students identify samples of seven types of recyclable plastic by using a flowchart scheme. The flowchart procedure includes making density comparisons of the plastic samples in water and alcohol and observing physical changes of plastic samples subjected to boiling water temperatures and exposure to acetone. This scheme is…
Descriptors: Class Activities, Chemistry, Plastics, Recycling
Harris, Mary E.; Harris, Harold H. – Journal of Chemical Education, 2007
Middle or high school students celebrate Earth Day on April 22, 2007 by participating in the activity to separate commingled recyclable trash to simulate sorting in a recycling center. Students would gain an appreciation for recyclable trash, after it is taken to a recycling center and learn about properties of recyclables.
Descriptors: Recycling, Sanitation, High School Students, Middle School Students
