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Grades 4 - 8. 30 students in groups.
Learn about stream and river ecosystems and their water quality with this virtual "tour" using weeklong hands-on activities. Trace the life of a river from headwaters to mouth at four sites along its path. Includes: Testabâ„¢ reagent tablets (single-packed) - 20 dissolved oxygen, 10 each wide-range pH, nitrate wide range, chloride, nutritab, buffer 7.0; 24 test tubes, 5 and 10 mL; 8 glass vials; data sheets and posters. |
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