1964 Alaska Earthquake

This video adapted from the Valdez Museum & Historical Archive, explores what happened during the Great Alaska Earthquake of 1964 through original footage, first-person accounts, and animations illustrating plate tectonics.

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Alaska Tsunami

In this video adapted from Alaska Sea Grant, discover why multiple tsunamis resulted from the Great Alaska Earthquake of 1964.

Cave Formation: Kane Cave

This video segment adapted from NOVA describes a simple experiment that confirmed the idea that microbes can accelerate the biogeochemical process of cave formation.

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Collecting Data Below the Earth's Surface

This video segment adapted from Discovering Women demonstrates how scientists use sound waves to collect data about the structure of Earth's crust.

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Drilling to Antarctica’s Rock Core

In this video adapted from ANDRILL, find out how geoscientists get through more than a dozen football fields of ice and water in order to study the rock and sediment beneath Antarctica.

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Earth as a System

This visualization adapted from NASA maps progressive global changes onto a rotating globe. Earth's atmosphere, hydrosphere, geosphere, and biosphere are shown to be dynamic and interconnected.

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Earthquakes: The Prehistoric Record

In this video segment adapted from NOVA, a geologist digs a trench along the San Andreas Fault to reveal three thousand years of earthquake history. Information from the layers of sediment may help geologists to predict earthquakes.

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Explore Alaska's Volcanoes

In this interactive activity adapted from the University of Alaska, explore four of Alaska's many volcanoes using photographs, computer simulations, and three kinds of satellite images.

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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The Grand Canyon: How It Formed

This video segment adapted from NOVA uses animation to present the theory of how the Grand Canyon was formed and features rare footage of a phenomenon known as debris flow.

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Health Risks of the BP Oil Spill

In this video segment adapted from Need to Know, learn about the possible short- and long-term health risks for workers involved in cleaning up the BP oil spill in the Gulf of Mexico.

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Karst Topography and Mammoth Cave

This video from KET shows karst topography in the Mammoth Cave region of Kentucky, illustrating how caverns and sinkholes are formed from water dissolving limestone underground.

Making a Seismometer

In this video segment adapted from ZOOM, cast members make a seismometer and experiment with different ways to make it register movement.

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Mountain Maker, Earth Shaker

This interactive activity adapted from A Science Odyssey Web site helps you visualize different types of plate tectonic activity and shows the impact this activity has on Earth's surface.

Mount St. Helens

This video segment from IdahoPTV's D4K shows photos of Mount St. Helen's 1980 eruption and what it looks like today.

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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.

Plate Tectonics: An Introduction

This video segment adapted from Discovering Women uses animations to introduce the theory of plate tectonics and to explain why earthquakes occur and how continents form.

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Plate Tectonics: Lake Mead, Nevada

Using animations to illustrate the theory of plate tectonics, this video segment adapted from Discovering Women takes you to Lake Mead, Nevada, to see visual evidence of how plate movement has been stretching the North American continent.

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Predicting Earthquakes

This video segment, adapted from QUEST, describes the extraordinary research that scientists are doing to help demystify and possibly better predict earthquakes.