Comprehensive School Kit - 8 Tests for 30 Students

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With a well planned teachers manual, navigate students through 11 experiments and tests in a format that actively promotes student involvement and class discussion. The PurTest® CO MPREHENSIVE SCHOOL KIT contains enough material for 30 students to complete 8 tests each plus 3 tests for the teacher to demonstrate to the class. Features: Build simple models of the hydrologic cycle and a water well. Identify how water acquires acid rain. Includes the same bacteria test used by the Centers for Disease Control and Prevention (CDC). Test for lead in water in 10 minutes. Detects lead down to the EPA-safe standard of 15 ppb (parts per billion). Identify absence or presence of pesticides based on the EPA standard for safety. Identify absence or presence of nitrates, nitrites, hardness, pH, alkalinity, chlorine, iron, and copper in 30 water samples. The Comprehensive Kit experiments include the hydrologic cycle, building a well, acid rain and the dilution solution, along with water facts, water usage, monitoring and general water awareness knowledge. Show more