2/13/2023 0 Comments Testout lab 6.4.5Samples of sand, silt, clay, and pea gravel.The profile tubes and lids, as well as the sand, silt, clay, and pea gravel, can be purchased from Lab Aids or Ward's Science.Soil profile tubes and lids, 2-5 per group.Watersheds and Soil Profiles student handout, 1 copy per student or per group.Understanding Watersheds student handout, 1 per student or per group.Access to a computer or other device with wifi for possible research. How Clean is the Water? student handout, 1 per student.Slide deck with aquatic ecosystem slides.
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