The USGS Water Science School
Welcome to the U.S. Geological Survey's (USGS) Water Science School. We offer information on many aspects of water, along with pictures, data, maps, and an interactive center where you can give opinions and test your water knowledge.
Interactive Water Cycle diagram (three age levels)
Water Cycle for Schools | Teacher resources
The USGS Water Resources of the United States provides water information that benefits the Nation's citizens. Publications, data, maps, and State information are available.