Water in the Solar System: Water, Water, Everywhere! Background
There are a variety of websites with details on water in our solar system, and the role of water on Earth.
Earth Day http://www.earthday.org/ http://www.nasa.gov/externalflash/earthday/
Water in the Solar System Background http://www.lpi.usra.edu/education/explore/ice/background/iceSolarSystem/
Ocean World http://oceanworld.tamu.edu/
Water Cycle by NASA Science: Earth http://science.nasa.gov/earth-science/oceanography/ocean-earth-system/ocean-water-cycle/
Why is Water a Priority for Mars Exploration? What Is So Special About Water? http://marsprogram.jpl.nasa.gov/education/modules/water_appendices.pdf
Ice on Mercury http://nssdc.gsfc.nasa.gov/planetary/ice/ice_mercury.html
Article: Mars Rover Scientists Wring Water Story from Rocks http://www.nasa.gov/vision/universe/solarsystem/opportunity_water.html
Article: Three Flavors of Water on the Moon http://www.space.com/scienceastronomy/moon-water-three-flavors-100322.html
Water on Enceladus http://science.nasa.gov/science-news/science-at-nasa/2006/09mar_enceladus/
