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Skill given for There Must Be Something in the Water: Investigating How Underground Pollutants Contaminate the Water Supply Comment on this resource

Sep 10, 2007 by PCK Editor, Lamont-Doherty Earth Observatory, Columbia University
Provides pedagogical insight concerning the skill of hypothesizing
More: http://go.hrw.com/resources/go_sc/ssp/HK1BSW09.PDF