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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The 2008 Wall Street Bailout

This video segment adapted from FRONTLINE: "Money, Power and Wall Street" traces the unprecedented decisions made by the U.S. government to intervene in the financial crisis of 2008.

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20-Year Map of Global Rainfall

This visualization from NASA shows global rainfall patterns over a 22-year span. It incorporates data from a combination of remote-sensing and ground-based sources.

70% Female

This Wide Angle video features the women of Rwanda who have emerged as outspoken leaders and the great strides they have made toward rights and equality.

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Abel Meeropol, Billie Holiday and A Song Born in Protest

Learn about teacher and author, Abel Meeropol who penned the haunting song of protest, Strange Fruit, in this segment from Independent Lens.

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Abraham Lincoln's Words

In this video excerpted from the PBS series Looking for Lincoln, Professor Henry Louis Gates, Jr. cites several examples of Lincoln’s use of “seemingly simple but profoundly eloquent language to express and ennoble his cause.”

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Abraham Lincoln, Attorney at Law

This video segment, excerpted from the PBS series Looking for Lincoln, explores Lincoln’s years as a "prairie" lawyer.

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Achieving Peace

This video from Women, War & Peace features a sit-in and other nonviolent actions conducted by the women of Liberia in 2003 to get participants at the peace talks in Accra, Ghana to sign a peace agreement in order to bring about the end of civil war in Liberia.

Acid Lake

Add acidity to a healthy lake and see what happens to the plants and animals in this interactive activity adapted from EcoKids.

Acids and Bases: Cabbage Juice Indicator

In this video segment, the ZOOM cast demonstrates how to use cabbage juice to find out if a solution is an acid or a base.

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Acids and Bases: Making a Film Canister Rocket

In this video segment, ZOOM cast members mix different amounts of baking soda and vinegar to see which combination produces the most carbon dioxide for launching a film-canister rocket.

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Acids and Bases: Testing Rockets

What happens when you mix baking soda and lemon juice? Watch the ZOOM cast launch a rocket using kitchen chemistry.

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Affirmative Action and the USA

In this video from Wide Angle, two American NAACP lawyers arrive to advise Brazilian civil rights organizations, leading to a discussion of differences between race relations in the U.S. and Brazil.

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Aging Diamonds?

In this video from Nature, geological detectives use ancient diamonds to learn more about Earth's inner layers.

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Alaska Native Pilots

In this video adapted from Storyknife Productions, Alaska Native pilots share how they use traditional knowledge to read the landscape and predict the weather.

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Alaska Native Teens Help Researchers

In this video adapted from KUAC-TV and the Geophysical Institute at the University of Alaska, Fairbanks, Alaska Native students contribute to research on how their environment is changing as a result of global warming.

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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.

All-Female Enterprise

This Wide Angle video looks at the advantages and disadvantages of running a small-scale, female-only business.

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All for One

In this video from Wide Angle, learn about the influence of the communist values of organization, discipline and collectivism on North Korean society.

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All in the Family

This video from the series Faces of America details the process of documenting family history and tracing lineage back through maternal and paternal lines.

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All Planet Sizes

This illustration from the Lunar and Planetary Laboratory shows the approximate sizes of the planets relative to each other. Note that the planets are not shown at appropriate distances from the Sun.

All Things Lincoln

This video segment, excerpted from the PBS series Looking for Lincoln, explores the ongoing cultural fascination with physical artifacts of Abraham Lincoln’s life.

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American Muslim Women

Learn about the perceptions and challenges of being a Muslim woman in the U.S., in this video segment from Religion & Ethics Newsweekly.

Amplitude

This interactive activity adapted from the University of Utah's ASPIRE Lab shows how a pendulum's amplitude changes as you set it swinging from different distances from its axis, and how the amplitude of a sound wave changes as you adjust the volume.

An Alaska Native Community Helps Seals

This video from First Alaskans Institute spotlights the Alaska Native community of St. Paul and its hands-on commitment to care for the land and animals on which it depends.

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Analyzing an Ecosystem

In this interactive activity adapted from the University of Alberta, identify the living and nonliving things in an ecosystem. Then look further at the living things to identify the producers, the consumers, and examples of mimicry.

Anglerfish

This video segment from NOVA: "Animal Imposters" shows the lightning-fast strike of the anglerfish.

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Animal Babies

This interactive slide show illustrates the variety of animal babies that exist on earth -- some completely independent and others deeply reliant on parental care.

Animal Classification Game

Learn about classes of animals and test your ability to identify animals as mammals, birds, reptiles and more in this interactive activity adapted from Sheppard Software.

Animal Coverings

It takes a thick skin to withstand the hardships that life has to offer. This collection of images shows a variety of animals, each with a slightly different type of protective covering.

Animal Mouths

This collection of images of six different creatures, including insects and carnivorous vertebrates, illustrates the wide range of mouth types that exist within the animal kingdom.

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Antarctica: A Challenging Work Day

What happens when the ground under your feet is ice and it's moving? This video segment adapted from NOVA features some of the dangers faced by scientists conducting research in Antarctica.

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Antarctica: Sea Ice

This video segment adapted from NOVA uses microwave images to reveal how sea ice doubles the size of Antarctica each winter. Rare footage shows how sea ice crushed the famous ship Endurance in 1914.

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Antarctic Ecosystem

In contrast with its largely lifeless interior, the Antarctic coastal marine environment supports a vibrant and diverse ecosystem. Explore the region's living bounty in this interactive activity adapted from the Woods Hole Oceanographic Institution.

Antarctic Food Web Game

In this interactive game adapted from the Bigelow Laboratory for Ocean Sciences, build a food web that illustrates the flow of energy in an Antarctic ecosystem and the relationships between predators and prey.

Antarctic Ice: Sea Level Change

What would happen if a portion of the Antarctic Ice Sheet were to melt? This video segment adapted from NOVA uses animations to show the effect of a 6-meter sea-level rise on coastal cities across the world.

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Anti-Immigrant Sentiment

Botswanans express some of their attitudes toward the influx of Zimbabwean migrants in this Wide Angle video segment.

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Arctic Atlas

In this interactive atlas adapted from UNEP/GRID-Arendal, explore different environmental features of the Arctic. Select from a list of themes to customize your map, then zoom in to take a closer look at one of six featured regions.

Arctic Climate Perspectives

This video, adapted from material provided by the ECHO partners, describes how global climate change is affecting Barrow, Alaska.

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Arctic Ecosystem

Despite seemingly inhospitable conditions, the Arctic environment has a vibrant and diverse ecosystem. Explore the life that thrives in this region in this interactive activity adapted from the Woods Hole Oceanographic Institution.

Arctic Haze

In this video segment adapted from KUAC, find out why the horizon in Alaska is sometimes shrouded in pollution and what it means for climate change in the Arctic.

Arctic Sea Ice Satellite Observations

In this interactive activity produced for Teachers' Domain, learn how Arctic sea ice has changed over the past 25 years in terms of maximum winter extent, concentration, and the timing of breakup each spring.

Arctic Summer

See the many birds that spend their summer in the Arctic in this video segment from Nature.

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Arduous March

In this video from Wide Angle, learn about the Arduous March, a dark period of hardship and famine in recent North Korean history.

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As the Crow Flies

In this video from Nature researchers from the University of Washington conduct a long-term experiment to see if crows can pass information down from one generation to the next.

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Astronomical Images in Different Wavelengths

Visible light is just one portion of the electromagnetic spectrum that a telescope may detect. This collection of images produced for Teachers' Domain features radio wave, infrared, visible light, and X-ray images of distant stars and galaxies as well as images of the telescopes designed to detect the various wavelengths of radiation.

Ataturk

This Wide Angle video segment illustrates Islamic and secular elements of life in Turkey, and introduces Mustafa Kemal Ataturk, the first president of Turkey, and his reforms.

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The Atlanta Riot

Learn about the events leading up to the Atlanta Riot of 1906 in this segment from The Rise and Fall of Jim Crow.

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Atmospheric Oxygen

In this feature, adapted from Interactive NOVA: "Earth," students explore the relationship between oxygen concentration and the well-being of various organisms by simulating a change in oxygen levels and observing what happens.

The Atom

In this interactive activity from ChemThink, take a closer look at atomic structure, properties, and behaviors.