Geology

This video segment from IdahoPTV's D4K describes and shows photos of the forces that shape the geology of the earth, including earthquakes, volcanoes, water, and glaciers.

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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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The Grand Canyon: Ancient Mountains

This video segment adapted from NOVA features the twisted and melted forms of the Grand Canyon's oldest rocks, the 1.7-billion-year-old Vishnu Schist.

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The Grand Canyon: Evidence of Earth's Past

In this video segment adapted from NOVA, a fossil found among the Grand Canyon's rock layers reveals the existence of a shallow sea that once covered most of western North America.

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The Grand Canyon: The Top Two Rock Layers

This brief video segment adapted from NOVA uses illustrations and the well-preserved footprints of a small reptile to portray the history of the Grand Canyon's top two rock layers.

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Minerals in Our Environment

What minerals are in your toothpaste? A pencil? A telephone? This interactive resource adapted from the U.S. Geological Survey illustrates the variety of minerals used in everyday items found in kitchens, bathrooms, offices, and yards.

Rock Cycle Animation

This visualization of the rock cycle from McDougal Littell/TERC illustrates common rock-forming processes such as crystallization, erosion, and metamorphism.

Rocks and Minerals

This video segment from IdahoPTV's D4K presents the types of rocks, how they are formed, what they are made of and how they are classified.

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Volcanic Eruptions and Hazards

This interactive resource adapted from the National Park Service illustrates the difference between explosive and effusive volcanic eruptions as well as the hazards that can result, including lahars, tsunamis, and lava flows.

Volcanic Features

This interactive resource adapted from the National Park Service illustrates the variety of landforms and features created by volcanoes. Featured are calderas, craters, fumaroles and other geothermal features, igneous rocks, lava flows, lava tubes, and maars.

Volcanism

Volcanoes are one of the most dynamic, powerful, and visible forces on Earth. This interactive resource adapted from the National Park Service uses images to describe different types and parts of volcanoes, volcanic rocks, magma, and where volcanoes form.