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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Baboon

In this Building Block video, watch as a big fluffy baboon sits in the tall grass and eats.

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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The Bayonet Constitution

This video from American Experience describes the events that forced Hawaiian King Kalakaua in 1887 to accept a new constitution for Hawai‘i that limited his power and gave increased influence to white landowners.

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Aligning Resources to Standards

This video clip shows Kentucky adult education instructors working together to align resources to common core standards. They learn how to identify the most effective resources for standards-based instruction.

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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Becoming Green Energy Experts

See how Lansing, Michigan inner-city youth become community science experts in energy sustainability and environmental health topics in this student-centric after-school program.

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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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The Beginning of the Cold War

American Experience: This Cold War video examines the steps that Harry Truman took to provide American support for governments threatened by the spread of Communism, a policy that came to be known as the Truman Doctrine.

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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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Belief Systems

Belief systems are one of the most influential factors in the evolution of a culture. They’re also a popular essay topic on the Regents Exam. Get a leg up on test day, and watch this video for essay ideas.

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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Benefits of Using a Human Model

In this video segment from Teaching Middle School Life Science, seventh-grade students use beads and scissors of various colors to represent specific food components and enzymes as they model digestion.

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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Bhopal, 25 Years Later

This audio segment from PRI's The World Science Podcast revisits a pesticide factory in Bhopal, India, where a 1984 gas leak caused as many as 8,000 deaths.

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Bhopal’s Unlikely Legacy

This audio segment from PRI's The World Science Podcast explores how the 1984 gas leak in a pesticide factory in Bhopal, India has increased public awareness about toxic threats, and has been a catalyst for new legislation here in the United States.

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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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Bianca Gets in Gear

Bianca visits a bike shop and learns how bicycle gears work in this Cyberchase video segment.

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Bianca Goes to the Movie

This Cyberchase video segment features Bianca, who must figure out the fastest route to a movie premiere.

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Bianca Goes where the Wind Blows

In this video from Cyberchase, Bianca and Mikaela want to fly a kite, so Bianca creates a wind gauge to test the strength of the wind in various parts of the park.

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Bianca the Spy

This video segment from Cyberchase introduces the idea of inverse operations as Bianca imagines herself as a spy.

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Bighorn Sheep

This video segment from Outdoor Nevada explores the adaptations that help desert bighorn sheep survive in their habitat.

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Biodiversity in the Dzangha-Sangha Rain Forest

In this interactive activity from the American Museum of Natural History, play "connect the dots" and discover the connections between the people, animals, and plants in three habitats of the Dzanga-Sangha rain forest in the Central African Republic.

Bioengineering Body Parts

In this video segment adapted from NOVA scienceNOW, scientists discuss their attempts to grow human body parts in a jar.

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Bioethics Classroom Debate

In this classroom-practice video, high school teacher Cherilee Lewis leads a classroom discussion on bioethics.

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Biomanufacturing Supervisor

In this video adapted from Connecticut's College of Technology/Regional Center for Next Generation Manufacturing, hear firsthand about what it’s like to be a biomanufacturing supervisor, making products that help save people's lives.

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Biomedical Technician Training

In this video adapted from ATETV, hear from a medical electronics engineering technology student about how she is improving her math, science, electronics, and communications skills in her community college program.

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Biomes

This interactive resource adapted from NASA describes the different temperature, precipitation, and vegetation patterns in seven biomes: coniferous forest, temperate deciduous forest, desert, grassland, rainforest, shrubland, and tundra.

Biotechnology: Production Support Associate

Learn how a community college degree in biotechnology led one woman to a career in helping to treat cancer, in this video excerpt from Pathways to Technology.

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Biotechnology Student Profile

Follow a high school student who is exploring the field of biotechnology by taking community college classes and job shadowing in this video segment adapted from Pathways to Technology.

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Biotechnology: Training & Careers

Learn what biotechnology is and what careers are available in the field, in this video excerpted from Pathways to Technology.

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Biotechnology: Upstream Processing Associate

In this video excerpted from Pathways to Technology, watch how one woman happily spends her days looking for a protein to help treat cancer, thanks to her community college degree in biotechnology.

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Bird Beak Gallery

This collection of images of 10 different birds illustrates the diversity of bird beaks.

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Bird Food

There are almost as many types of bird beaks as there are types of food that birds like to eat. This collection of images shows a wide range of beaks and the types of foods handled by each.

Bird Migration

This video segment from IdahoPTV's D4K discusses the purpose of migration and shows researchers and students working together to study bird migration at the Idaho Bird Observatory.

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KET Image Bank: Birds

Browse through thumbnail images of native birds in this KET Image Bank interactive catalog. Clicking a thumbnail will take you to a larger image for download.

Birds of Kundha Kulam

In this Nature video, learn about the extraordinary impact that birds have on the agriculture of a small Indian community.

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Birds of Prey

This video segment from IdahoPTV's D4K defines birds of prey and explains what characteristics they have that identify them as a raptor and help them catch their prey.

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Birds Surround Washington Monument

This Building Block video shows birds flying by the Washington Monument under gray skies, as shot through tree branches hung with lights.

The Birth of a Nation

This video from The Rise and Fall of Jim Crow highlights the 1915 film The Birth of a Nation, directed by D. W. Griffith, which presents a distorted image of African Americans in the South and created a heightened atmosphere of violence upon its release.

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Birth of a Tsunami

This video excerpt from NOVA: “Japan’s Killer Quake” shows how an undersea earthquake produces a tsunami.

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Blacker Than Black

In this video adapted from NASA, two members of a NASA research team working to produce carbon nanotubes share some background behind this new technology, show examples of how it will be useful, and explain the various tests being performed to ensure readiness for spaceflight.

Blacks and Whites in the New South

This segment from The Rise and Fall of Jim Crow illustrates the precarious and ill-defined relationships existing between whites and blacks following the Civil War.

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Blood Flow and Thermoregulation

In this interactive activity adapted from the University of Alberta, learn about the ways your body can regulate its temperature.

Blood Vessels Help Tumors Grow

In this video segment, adapted from NOVA, Dr. Judah Folkman uses the scientific method to discover how cancer cells induce the formation of new blood vessels, which in turn nourish those cancer cells.

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Bodies Move

This video segment from the documentary American Masters: Bill T. Jones: A Good Man explores various aspects of contemporary dance.

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Body Control Center

Throughout the day, your nervous system monitors and makes endless adjustments to your body's basic systems -- all to keep you alive. This interactive feature illustrates the complexity of such a task.

Body Matches

In this video from Cyberchase, the CyberSquad searches for a kidnapper using their only clues: a footprint and a handprint.

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Body Waste that Protects You

This video segment from IdahoPTV's D4K covers the body wastes that protect you: earwax, mucus, tears, sweat and vomit.

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The Book

In this video segment from Jakers! Abuelita describes her life as a migrant worker.

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Booker T. Washington: An Education

This video segment from The Rise and Fall of Jim Crow chronicles Booker T. Washington’s invitation to head the Tuskegee Institute and explains his philosophy of education.

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Booker T. Washington and W.E.B. Du Bois: The Conflict

This video segment from The Rise and Fall of Jim Crow highlights W.E.B. Du Bois’ criticism of Booker T. Washington for focusing on the economic advancement of blacks and accepting the injustices of Jim Crow.

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Booming Sands

This video segment, adapted from NOVA scienceNOW, presents basic concepts of physics behind "booming" sand dunes. See how surface tension affects potential and kinetic energy and how it all works together to create sound.

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Botanicas: Markets of the Divine

In this video from Religion & Ethics NewsWeekly, learn about botanicas, shops in Latino communities that cater to all kinds of physical, spiritual and religious needs.

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Botswana Today

Learn about the achievements and national problems of the African nation of Botswana in this video segment from Wide Angle.

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Bowhead Whaling and Its Impact

This interactive activity, adapted from material provided by the ECHO partners, explores the history of whaling in the Arctic and introduces a landmark study of whale populations.

The Brain

This video segment from IdahoPTV's D4K explores the anatomy of the brain and how your brain interacts with the rest of your body.

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The Brain in Action

This video segment from The Human Spark observes the brains responses to a series of cognitive tests.

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Brain Trauma

Find out how serious head concussions can be in this video segment adapted from NOVA scienceNOW.

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Brainwashed

In this video, excerpted from Wide Angle, a North Korean defector attempts to convince her younger sister to stay with her in Seoul rather than return to North Korea.

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Breaking New Ground

This video from Wide Angle provides a look at some of the women who are leading Rwanda in government, business and promoting peace.

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Breaking Point: Testing Tensile Strength

This video excerpt from NOVA’s "Making Stuff: Stronger" and accompanying demonstration illustrate the toughness and tensile strength of Kevlar® and other everyday materials.

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Bridging Culture, Community and Science

See how a place-based high school curriculum project promotes STEM learning through local ethnography and conservation projects. This video segment showcases one of 11 CREST projects taking place in rural, coastal Maine communities.

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Brooklyn Bridge

This Building Block video features an aerial shot from a helicopter circling over the Brooklyn Bridge and following the span across part of the river. Manhattan Bridge is visible in the background in New York City.

Bubonic Plague

In this video segment adapted from A Science Odyssey, learn about bubonic plague and how city officials in San Francisco tried to contain its spread in the early 1900s.

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Buddhist Ash Interment

In this video from Religion & Ethics NewsWeekly, learn about the beliefs and practices surrounding Buddhist ash interment.

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Build-a-Fish

In this interactive activity from Shedd Aquarium, build a fish and then release it into the reef to search for food and evade predators. Try different combinations and observe how each kind of fish has unique adaptations that help it survive in its habitat.

Building a Cleaner Battery

This video excerpt from NOVA’s "Making Stuff: Cleaner" and accompanying activity guide for grades K–8 introduce students to the design and use of batteries and the rapidly developing science of clean energy and clean materials.

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Building a Dam Like a Beaver

In this video segment from PEEP and the Big Wide World, children make a dam with dirt, sticks, and stones to try to stop the flow of water.

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A New World Order

This video from Women, War & Peace explains how women and their dependents are most affected by the changed nature of warfare since the end of the Cold War.

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