US Geological Survey
U.s. Geological Survey: Water Cycle
An in-depth explanation of the Earth's water cycle, including a hyperlinked diagram that provides direct access to information about each phase in the cycle.
Open Curriculum
Open Curriculum: Water and Water Cycle
An illustrated article helps learners understand the water cycle and the distribution of Earth's water.
US Geological Survey
Usgs: The Water Cycle
Learn about the movement of water from Earth's surface to the atmosphere with this site. Site describes the water cycle in words and with a diagram. Also explored on the page is the distribution of Earth's global water supply.
American Geosciences Institute
American Geosciences Institute: Earth Science Week: Earth's Hydrologic Cycle
In this experiment, students create a model of the water cycle and learn about its crucial role in moving water around the Earth.
American Geosciences Institute
American Geosciences Institute: Earth Science Week: Water: A Never Ending Story
Students carry out a number of activities that demonstrate the concepts of evaporation, condensation, precipitation, and soil moisture and runoff. Then students construct a terrarium as a way to observe the water cycle. Immediately...
Science Buddies
Science Buddies: The Power of Heat Is Right Under Your Feet!
You might know that we are able to get free energy from the Sun, the wind, and water, but we can also get free energy from Earth itself. This source of energy is called geothermal energy and it is all about taking advantage of the heat...
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.
The Wonder of Science
The Wonder of Science: Ms Ess2 4: Cycling of Water Through Earth's Systems
Work samples, phenomena, assessment templates, and videos that directly address standard MS-ESS2-4: cycling of water through earth's systems.
Science Buddies
Science Buddies: Swimming in Acid: Understanding Ocean Acidification
The oceans are a precious natural resource, part of Earth's carbon cycle. But what happens if the oceans absorb too much carbon dioxide? Many scientists are concerned that the increased absorption of carbon dioxide is causing them to...
University Corporation for Atmospheric Research
Ucar: Introduction to the Atmosphere
A detailed overview of the Earth's atmosphere, with explanations about atmospheric properties, the structure of the atmosphere, its four layers, atmospheric processes, energy heat transfer, conduction and convection, and radiation. All...