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National K -12 Subject
Science
Earth and Space Science
Earth System, Structure, and Processes
Earth's History
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Browse results: Earth's History
| RESOURCE | GRADE LEVEL | MEDIA TYPE |
|---|---|---|
Caves: Extreme Conditions for LifeThis video segment adapted from NOVA raises the provocative idea that if life can exist in the most extreme environments on Earth — such as in dark, toxic caves — then perhaps living things can also survive in harsh environments on other planets. Accessibility features: Audio Description, Caption |
6-12 |
Video |
Climate Change Impacts Alaska GlaciersThis video adapted from KTOO takes a look at Earth's warming and cooling cycles and the current atypical trend of warming that is impacting the glaciers in Alaska's Inside Passage. Accessibility features: Caption |
6-12 |
Video |
Comets Bombard the Early EarthVisualize how comets carrying chemicals necessary for life could have made their way to Earth billions of years ago in this video segment adapted from NOVA. Accessibility features: Caption |
6-12 |
Video |
Comets Deliver Amino Acids to EarthAmino acids, essential ingredients for life, may have been delivered to Earth by comets billions of years ago, as visualized in this video segment adapted from NOVA. Accessibility features: Caption |
6-12 |
Video |
Dating Lava Flows on Mauna Loa Volcano, HawaiʻiIn this video segment adapted from NOVA, scientists search
for carbonized remains of plants preserved in lava flows to find out how
long it has taken rain forests on Hawaiʻi to regenerate after
a volcanic eruption. Accessibility features: Audio Description, Caption |
3-12 |
Video |
Deep-Sea Vents and Life's OriginsDeep-sea vents are home to life forms that do not rely on the Sun's energy. They depend instead on energy from volcanoes on the ocean floor. This video segment adapted from NOVA hypothesizes that life on Earth may have begun in this extreme environment. Accessibility features: Audio Description, Caption, Transcript |
3-12 |
Video |
Deep TimeIn this video a Penn State professor refers to National Park canyons carved out by water and wind as he explains “deep time” - the notion that the earth is billions of years old; another professor states how the theory of evolution is supported by evidence of an ancient Earth recorded in rocks. Accessibility features: Caption |
6-12 |
Video |
Diatoms Measure Climate ChangeIn this video segment adapted from NOVA: "Becoming Human," learn what the analysis of fossilized microscopic algae in sediment tells us about rapid changes in climate in Africa's past. Accessibility features: Caption |
6-12 |
Video |
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.
Accessibility features: Caption |
3-8 |
Video |
Earthquake PredictionThis video segment adapted from NOVA tells the tragic story of two Japanese seismologists who disagreed about the threat of earthquakes in the early twentieth century. Today, seismologists in California offer residents a probability of risk that an earthquake might occur. Accessibility features: Caption |
6-12 |
Video |
Earthquakes: Los AngelesIn this video segment adapted from NOVA, animations are used to show how the hills around Los Angeles were formed by earthquakes at small thrust faults that extend outward from the larger San Andreas fault. Accessibility features: Caption |
6-12 |
Video |
Earthquakes: The Prehistoric RecordIn 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. Accessibility features: Caption |
3-12 |
Video |
Field Research on Glacial ChangeIn this video segment produced by ThinkTV, learn how scientists take measurements in the field to gain an overall understanding of changes in local water supplies, and how they may relate to changes in the mass of nearby glaciers. Accessibility features: Caption |
6-12 |
Video |
Geology of Death ValleyThis video segment from NatureScene examines the landforms of Death Valley and how they came to be. Accessibility features: Caption |
3-8 |
Video |
Geology of North Dakota BadlandsSee 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. Accessibility features: Caption |
3-8 |
Video |
The Grand Canyon: Ancient MountainsThis 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. Accessibility features: Caption |
6-12 |
Video |
The Grand Canyon: Evidence of Earth's PastIn 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. Accessibility features: Caption |
6-12 |
Video |
The Grand Canyon: How It FormedThis 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. Accessibility features: Caption |
3-12 |
Video |
The Grand Canyon: Its Youngest RocksThis video segment adapted from NOVA features the youngest rock formations in the Grand Canyon, lava dams, and how they are subject to the eroding power of water. Accessibility features: Caption |
6-12 |
Video |
The Grand Canyon: The Top Two Rock LayersThis 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. Accessibility features: Caption |
3-12 |
Video |