E-learning for Kids
E Learning for Kids: Science: Bermuda Triangle: What Is Condensation?
Cindy is at the beach learning a lot about water. Join her to explore the water cycle.
US Geological Survey
Usgs: How Much Water Is There on (And In) the Earth?
The USGS gives an overview of the amount of water on Earth and where it is located. It gives a few interesting facts about the Earth's supply of water. Click Home to access the site in Spanish.
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.
Khan Academy
Khan Academy: Biogeochemical Cycles Review
Review information on the cycling of matter throughout the spheres of Earth.