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Environmental Test Lab

(Science Source). This kit provides students with the opportunity to survey aspects of air and water pollution in their local area, using simple determinative tests. Exercises include determinations of dissolved oxygen, pH, water hardness, available phosphate, chloride concentration, hydrogen sulfide, lead, air particulates, effects of gaseous pollutants, and rain water chemistry. Sufficient materials are provided for (a) a series of teacher demonstrations; (b) small group experiments; or (c) a single student project suitable for junior-senior high school students.

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