Students use a digital atlas of Idaho to explore the effects of the Lake Bonneville Flood. They become familiar with how floods shape our earth and change landscapes. Students graph a a timeline of the rise and fall of Lake Bonneville.

The Evergreen Project profiles the natural history of rivers and streams. Topics include watersheds, how a stream becomes a river, erosion, water pollution, and the like.

The hydrological cycle is usually called a recurring consequence of different forms of movement of water and changes of its physical state on a given area of the Earth. The role of different processes in the hydrological cycle and their...

This interactive map of the US allows you to select among numerous streams and rivers to determine their current flow rate.

The North Carolina District of the Water Resources Discipline, U.S. Geological Survey (USGS), is committed to collecting hydrologic data and conducting hydrologic investigations of the highest quality. North Carolina District staff...

Detailed information about the hydrology and the geography of the Gulf of St. Lawrence. Discusses water quality, aquatic species, and some of the ecoregions that surround the St. Lawrence Seaway, including lowlands and forests....

The U.S. Geological Survey reports on the latest news affecting the earth today, as well as providing a wealth of data, reports, and information.

Learn about water as a precious resource in danger of being depleted. Understand the roles that overuse and agricultural use play in the sustainability efforts of this essential resource. Includes video. [28:25]

Students build a physical model to simulate watershed features, then use Google Earth software to tie the model to a real place. By exploring several layers of map-based images and data, students learn the complexity of a watershed and...

What is a watershed? Learn the answer to this question and find out about the Susquehanna River watershed on this site.

This tutorial looks at the hydrosphere, that component of the earth that is liquid water such as rivers, streams, oceans, and so on.

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.

Through eight lessons, students are introduced to many facets of dams, including their basic components, the common types (all designed to resist strong forces), their primary benefits (electricity generation, water supply, flood...

Check out this simple overview of the water cycle and learn how to build a model of the water cycle.

A map of the major drainage basins of the African continent indicating the hydrologic flow to the Atlantic and Gulf of Guinea, the Mediterranean, the Red Sea and Indian Ocean, and the interior basins of the Sahara and Kalahari deserts...