NASA
Nasa: Polar Ice and Its Possible Effects on the Earth
This article describes the effects of polar ice caps on the Earth and offers explanations as to the possible effects of polar ice melting on sea level and temperature.
US Geological Survey
U.s. Geological Survey: Where Is Earth's Water Located?
Find out how much of the water on Earth is actually usable by humans, and where the rest of it is located. Learn where our water comes from and why it never runs out. Click Home to access the site in Spanish.
US Geological Survey
Usgs: All of Earth's Water in a Single Sphere!
See how all of Earth's water compares to the total size of the Earth.
The Wonder of Science
The Wonder of Science: 5 Ess2 2: Water Availability and Distribution
With these lessons, student can provide evidence to how water is distributed around Earth by interpreting graphs of the amounts and percentages of water in various reservoirs. On this site find work samples, phenomena, assessment...
Center for Educational Technologies
Nasa: Classroom of the Future: Spheres: Hydrosphere
Use this site to learn about the millions and trillions of gallons of water that covers the earth, known as the hydrosphere.
PBS
Pbs Learning Media: The Water Planet
75% of our earth is covered by water. Water can be found in oceans, lakes, rivers, groundwater, and sea ice. View these captivating photos of our earth showing the different water sources and images of our earth taken by NASA. Background...
Geography 4 kids
Geography4 kids.com: Flowing Water
Take a look at the earth's hydrosphere. From liquid to glacier, to vapor, to oceans and clouds this text offers an overview for young researchers.
NASA
Climate Kids: 10 Interesting Things About Water
Discover 10 very interesting things about water, including sources of life, ocean ecosystems, freshwater and ice, salt and salt water, sources of water, the body's water makeup, plant's consumption of water and the 3 states of water.