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The Pondwater Tour A great introduction into the study and measurement of changes in the water quality of a lake, stream, pond, aquarium, or even a fish bowl. Each student on the Pondwater Tour conducts water quality tests for pH, dissolved oxygen, nitrate, and ammonia using safe, simple TesTab reagent tablets. Students teat variables and investigate natural processes that create changes in water quality over time. Tablets and sample bags for 30 students.
522701 The Pondwater Tour (2#) $72.50 522711 Reagent Refill,The Pondwater Tour (2#) $53.20
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