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Comprehensive School Kit - 8 Tests for 30 Students As Needed Calypso Blue Premium Cartridges areWith 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 COMPREHENSIVE 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