PBS
Pbs Learning Media: Is It Alive?
What is it that distinguishes a living organism from a nonliving object? This video presents examples that aren't as clear-cut as one might think, enticing students to question what it means to be alive. [3:02]
PBS
Pbs Learning Media: Masters of Disguise
In the face of danger, what's a spineless animal to do? This video segment introduces the concept of camouflage -- how animals achieve it and how this form of disguise benefits both predators and prey. Footage from NOVA: "Animal...
PBS
Pbs Learning Media: Biological Invaders
This video segment from Evolution: "Extinction!" shows the impact of invasive species on native ecosystems. [3:23]
PBS
Pbs Learning Media: Fish With Fingers
In this video segment from Evolution: "Great Transformations," paleontologist Jenny Clack explains that vertebrates evolved fingers before they invaded land. [3:49]
PBS
Pbs Learning Media: Evolving Ideas: How Does Evolution Really Work?
The process of evolution through natural selection is the focus of this video segment from Evolution, which presents a field study of hummingbird speciation in Ecuador. [6:41]
PBS
Pbs Learning Media: Evolution of the Eye
Zoologist Dan-Erik Nilsson demonstrates how the complex human eye could have evolved from simple light-sensitive cells. From a PBS show called "Evolution: Darwin's Dangerous Idea." Includes background reading material and discussion...
PBS
Pbs Learning Media: Tale of the Peacock
The peacock provides a classic example of sexual selection, the force behind nature's extravagances. From Evolution: "Why Sex?" [4:02] Includes background reading and discussion questions.
PBS
Pbs Learning Media: Alzheimer's Disease
This video segment from the Secret of Life School Video: "Genetic Medicine: Tinkering with Our Genes" explores the potential for gene therapy to cure diseases like Alzheimer's. [2 min, 48 sec]
PBS
Pbs Learning Media: Double Immunity
Dr. Stephen O'Brien of the National Cancer Institute discovers a 700-year-old mutation that makes a person resistant to HIV infection. From Evolution: "Evolutionary Arms Race."
PBS
Pbs Learning Media: Who Owns the Genome?
This video segment from NOVA: "Cracking the Code of Life" examines the social and ethical implications of genome research. [4 min, 8 sec]
PBS
Pbs Learning Media: A Mutation Story
This video segment describes the role of the sickle cell gene in natural selection. Footage courtesy of the PBS series Secret of Life: "Accidents of Creation." [4:49]
PBS
Pbs Learning Media: Single Celled Organisms
This video segment explores the astounding diversity of the world's smallest life forms: single-celled organisms. [3:43]
PBS
Pbs Learning Media: Designing the Citigroup Skyscraper
This video segment adapted from the PBS series "Building Big" shows how a structural engineer overcame the challenges of building New York's Citigroup skyscraper over a church by using triangles to add muscle and stability to the...
PBS
Pbs Learning Media: Curious George: Build a Wall
In the video "Keep Out Cows," Curious George tries to build a wall to keep the cows from munching on a flowerbed. He uses newspapers attached to a clothesline, but will they be strong enough to keep Leslie Cow and her friends away?...
PBS
Pbs Learning Media: Gaining Catfish Aquaculture Skills
See how Mississippi high school students confront the uncertainty and untidiness of science and develop problem-solving strategies in the context of local catfish farming. [5:40]
PBS
Pbs Learning Media: Habitat and Diet in Racehorse Development
This animated segment from KET's Electronic Field Trip to a Horse Farm demonstrates one of the ways calcium, a naturally occurring mineral derived from limestone, enters a horse's diet to give it an advantage in bone strength. [1:09]
PBS
Pbs Learning Media: It's Cool to Be a Civil Engineer
Who decides how massive structures like skyscrapers are made? This video segment adapted from the PBS series "Building Big" showcases the job of a civil engineer. [3:11]
PBS
Pbs Learning Media: Building the Channel Tunnel
How do you build a tunnel 32 miles long--under water? This video segment, adapted from the PBS series "Building Big," follows the construction of the Channel Tunnel (nicknamed "Chunnel"), the engineering wonder that connects England to...
PBS
Pbs Learning Media: Arctic Climate System
Learn how the Arctic is a part of a global climate system in this video segment adapted from the National Film Board of Canada.
PBS
Pbs Learning Media: Radiometric Dating
In this video segment from A Science Odyssey, scientists explain how Earth's age was determined by examining the radioactive rocks in Earth's crust.
PBS
Pbs Learning Media: Asexual Reproducers
This video segment explores the benefits and pitfalls of cloning as a means of reproduction. From Evolution: "Why Sex?" [3:17] Accompanied by a short background essay.
PBS
Pbs Learning Media: Metamorphosis: How Frogs, Dragonfiles & Butterflies Grow
All animals develop and grow over time. The animals in this video segment, however, undergo very dramatic changes on their way to adulthood--a developmental process known as metamorphosis. [4:45]
PBS
Pbs Learning Media: Experimenting With a Pendulum
In this video segment, members of the ZOOM cast experiment with a pendulum and discover what they need to do to make the pendulum complete one back-and-forth swing in five seconds. [3:57]
PBS
Pbs Learning Media: Lightning!
This video segment adapted from NOVA explains the mysterious force of lightning.