Located on the Colorado River, Lake Mead is the largest reservoir in the U.S. A new 13 minute documentary (additional film formats here) describes the crucial role of science in maintaining high water quality in Lake Mead. Supplement the film with a recent USGS publication covering research in the lakes and tributaries of the Lake Mead National Recreation Area.
National Phenology Network
2012 had the earliest spring and the earliest flowering on record for the conterminous U.S. Your class can contribute to the study of recurring plant and life cycle stages by participating in the USA National Phenology Network's "Nature's Notebook" campaign.
Biology, Geography, Geology, Water, and much more...