US Geological Survey
Usgs: Water Science for Schools Water Science Storytime!
This U.S. Geological Survey website features a fictious town, Dryville, and uses it to illustrate every aspect of water management that you might encounter. Click Home to access the site in Spanish.
Other
Isfahan: Qanats
Use this site to learn about the fascinating Qanats - a water irrigation system used long ago. Follow the prompts to get to more information about this interesting system.