This topical directory provides an alternate way to browse United States Geological Survey (USGS) science programs and activities. It is not an exhaustive list of all USGS science topics but provides a categorization...

This activity will introduce students to water-induced topsoil erosion and different ways to control it. Using a stream table (prepared by the teacher), they will vary the surface of the 'soil', and the height of the...

NASA's Visible Earth is a searchable directory of images, visualizations, and animations of the Earth. The images are also listed under the following categories: agriculture, atmosphere, biosphere, cryosphere, human...

This learning module from the University Corporation for Atmospheric Research will help students learn more about volcanic ash. The module begins with information on Iceland's Eyjafjallajökull Volcano, which erupted in...

This activity enables students to meet and interact with practicing scientists, to see scientific equipment being used by professionals, and to participate in a local data gathering and analysis exercise. It also should...