Documenting Glacial Change

This collection of comparative glacier images adapted from the National Snow and Ice Data Center shows substantial changes in five Alaskan glacier positions over periods of 60 to 100 years.

Earth System: Drought and Air Quality

This video segment adapted from NASA's Goddard Space Flight Center discusses how a drought can have negative effects locally, for example by increasing the number of forest fires, and also globally, for example by impacting air quality thousands of miles away.

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Erosion and Weathering

Erosion and weathering may be caused by a variety of factors including wind and water. This still collage produced for Teachers' Domain features images of rock, soil, and beach erosion.

Geology of Death Valley

This video segment from NatureScene examines the landforms of Death Valley and how they came to be.

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Geology of North Dakota Badlands

See how the geology of the North Dakota badlands has changed over time in this video segment from NatureScene, featuring the landscape at Theodore Roosevelt National Park.

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Mount St. Helens: Before and After

This multimedia resource produced for Teachers' Domain chronicles the 1980 volcanic eruption of Mount St. Helens. Featured are still images of the devastation, video of the eruption plume, and before-and-after satellite images of the affected region.

Nisqually Glacier at Mount Rainier

Observe the Nisqually Glacier at Mount Rainier in this video segment from NatureScene.

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Virtual Cave

This interactive resource adapted from The Virtual Cave by Dave Bunnell, presents images of various features found in solution caves and includes detailed information on how these features are formed and where they occur.

Virtual Lava Tube

This interactive resource adapted from The Virtual Lava Tube by Dave Bunnell, presents images of different features found in lava tube caves and includes detailed information on how these features are formed and where they occur.