Answer many questions with the 20-1503 Investigating Water Pollutants as you challenge your students with this hands on primer on our most pressing environmental challenge.

Using safe, easy to use chemical tests, students analyze local water samples for a variety of common pollutants including chlorine, copper hardness dissolved oxygen, nitrogen, phosphate and pH. Your class will also learn how to quantify the concentration of pollutants and determine the pollution level that poses a danger to wild life and man. Grade level: 7-10