Chemtrails vs Contrails Discussion Post

Chemtrails vs Contrails Discussion Post
This page shows the discussion prompt and the simple grading rubric.

File 114950 is a 12kB Microsoft Word 2007 (.docx)
Uploaded: Apr24 17
Last Modified: 2017-04-24 17:22:09
https://serc.carleton.edu/download/files/114950/chemtrails_vs_contrails_discussion.docx

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