This kit helps students study the environment and the effect that humans have on nature through actual field study. They learn The Watershed Story, an explanation of a watershed and how it relates to nature. The teacher's manual provides guidelines on taking a field trip, conducting water quality tests, and data sheets for collection and interpretation of data. Included are test sheets for pH, nitrate, phosphate, and dissolved oxygen using non-hazardous TesTabs, turbidity, and temperature. Includes all necessary reagents and accessories along with two projects from Project WET. Designed for up to 30 students, grades 1-5.