US Geological Survey
Usgs: Water Q & A
You will find this list of questions interesting and amusing. "Things like, "Is salt water used for anything in the U.S.?," and How can we have a 100-year flood two years in a row?", are found on this this. Click Home to access the site...
Scholastic
Scholastic: Study Jams! Science: Ecosystems: Water Cycle
Watch an animated video on the water cycle, become familiar with related vocabulary terms, and then quiz yourself on the parts of the water cycle, and review your answers when you're done. Site includes guidelines for a lesson entitled...