Arrangement 2

In this video segment from Cyberchase, Matt tries for a second time to arrange tables and chairs to accomodate 20 workers.

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Arrangement 3

Matt’s third table arrangement helps fit all 20 workers at five tables in this video segment from Cyberchase.

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Art That Tells a Story

This interactive activity, adapted from material provided by the ECHO partners, presents nine art objects and shows how they can reveal different types of stories.

Ask an Engineer

Explore some of the wonders of modern engineering in this video from the Sciencenter in Ithaca, New York. Hear a diverse selection of engineers explain how things work.

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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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ATE Internships and Co-ops

In this video adapted from ATETV, learn how Bristol Community College promotes internships and co-ops to prepare students for work in technology-related careers.

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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.

Atoms: The Space Between

This video segment adapted from A Science Odyssey takes a look at the scale of the atom and the tremendous amount of space between the electrons and the nucleus. If all this empty space exists in matter, how can any substance be solid?

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Atrazine Affects the Water Supply

In this video segment featuring live-action animation, adapted from Big River: A King Corn Companion, see how the agricultural pesticide atrazine impacts both crops and human health.

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Attention to Scaling

In this video segment from Cyberchase, the CyberSquad adds a scale to their bar graph to give a more accurate picture of the bug infestation at the Cybrary.

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At the University of Brasilia

Consider the opposing views on the policy implemented at the University of Brasilia in this Wide Angle video.

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Automatic Door Opener

In this video segment adapted from ZOOM, watch the design process in action as cast members create automatic door openers to open their bedroom doors while still lying down.

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Avalanche Town

The impact of natural disasters is made vivid in this video segment adapted from NOVA. A small town in Iceland, prepared for recurrent avalanches, is devastated when one takes a new and damaging path.

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Average Practice Time

In this video segment from TV411, figure skaters compute their average daily practice time.

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Backyard Birdfeeders

This video from WPSU’s series Outside suggests how to feed birds in winter, a hobby that can foster awareness, care, and respect for birds.

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Backyard Bugs

This video segment from Wild TV takes a closer look at backyard bugs, their habitat and characteristics.

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Backyard Turtles

In this video from the WPSU’s series Outside, learn about backyard turtle habitats, their favorite foods, and why they don’t make good pets.

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Backyard Wildlife

Squirrels and chipmunks are just two of the animals you might see. Backyard Wildlife, an original KET video, encourages children to explore the world outside their back door.

Backyard Wildlife Interactive

Squirrels and chipmunks are just two of the animals you might see. Backyard Wildlife, an original KET video, encourages children to explore the world outside their back door.

Baha'i

In this video from Religion & Ethics NewsWeekly, learn about the Baha'i faith and its mission to promote peace and equality around the world.

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Balancing Equations with Multiple Terms

In this video segment from Cyberchase, Digit and Inez must balance two number sentences to save the bunnies of Cyberspace.

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Balloon Brain: Designing a Helmet

In this video segment adapted from ZOOM, cast members are challenged to design protective headgear for a water balloon using what they know about the properties of the materials available.

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Ballot boxing: The problem with electronic voting machines

In this video adapted from Need to Know, correspondent Rick Carr investigates why new voting machines with the latest in technology may not be a panacea for what troubles the American voting system.

Bamboo Mountain

In this video segment from Nature, researchers study pandas in an effort to halt their decline in population.

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Bandwidth and Data Conversion

This interactive activity adapted from the Wisconsin Online Resource Center describes the factors that affect the speed of data transfer in computer networking systems and some of the techniques used to increase the data capacity of these systems.

Baptism

In this video from Religion & Ethics NewsWeekly, explore the rite of baptism and the diversity of practices among different Christian denominations.

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Barbara Johns of Farmville, Virginia

In this video from The Rise and Fall of Jim Crow, learn about 16-year old Barbara Johns, a high school student who, in 1951, organized a student walk-out to protest inferior educational conditions at Moton High School in Farmville, Virginia.

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Barshefsky Interview

In this video from Wide Angle, Ambassador Charlene Barshefsky, former U.S. Trade Representative in the Clinton Administration, discusses her views on economic change in China.

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Basic Instincts

This video from Nature: "My Life as a Turkey" explores the knowledge wild turkeys have about the world around them.

Bats of the Southwest

This video segment from the Nevada Department of Wildlife looks at various species of bats and how they impact the environment.

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Bear Necessities

This Nature video segment focuses on the four foods most important to the grizzly bears' survival, and it describes the threats to the supply of each of them.

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Bear Research

In this video segment from IdahoPTV's D4K tag along with two biological researchers as they conduct their research project about bear movements.

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Bears

This video segment from IdahoPTV's D4K shows bears' adaptations for eating.

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Bears' Lunch Counter

This Nature video segment explores how the relationship between humans and grizzly bears has changed over the course of American History, and it describes the closing of the Yellowstone National Park garbage dumps in the 1970s.

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Bears Don't Recognize Boundaries

In this video segment from Nature, learn about the problems bears are creating on ranch land surrounding Yellowstone National Park.

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Bears in the Schoolyard

Learn about the precautions humans must take in the face of a growing grizzly bear population in this video from Nature.

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Beavers

This video segment explores the world of the beaver, including the biology of the species and, more importantly, its ability to transform an ecosystem for its own benefit.

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Bee-ing in a Swarm

Learn about bees, their habitat and how to interact with a swarm in this Wild TV video segment.

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Bee Navigation

This video segment from NOVA: "The Mystery of Animal Pathfinders" explores honeybee communication and navigation.

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Bees

In this video segment from WILD TV, learn about bees and the different techniques for handling them.  

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Beijing Riviera

This video from Wide Angle takes viewers to the Beijing Riviera, an exclusive gated community for elites who have access to luxury goods and services on an unprecedented scale.

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Beneath the Waters of Cocos Island

The nutrient-rich waters surrounding Cocos Island set the stage for astounding predator-prey interactions, as seen in this video segment from NOVA: "Island of Sharks."

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Ben Hall of Sapelo Island

In this video segment from EGG: the arts show, Sapelo Island resident Ben Hall guides viewers through an introduction to Sapelo Island which is inhabited by the descendants of African slaves.

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Beyond Einstein

NASA scientists describe some of the ways current science is addressing several of Einstein's fundamental questions and theories in this video adapted from NASA.

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Beyond the Present

This video from The Human Spark provides a look at humans' unique ability to reflect upon events that have happened in the past and think about things that could possibly happen in the future.

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Bianca Gets a Present

In this video segment from Cyberchase, Bianca is babysitting two young girls on Halloween. When their mother is late, she has to take them trick-or-treating even though it is her birthday. To thank her, the girls combine their Halloween candy and then share it equally amongst themselves and Bianca.

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