PBS
Pbs Learning Media: A Hole in the Sky
This video segment adapted from Interactive NOVA profiles two scientists who were surprised in 1984 to discover a hole in our atmosphere's ozone layer as big as the United States. [3:47]
PBS
Pbs Learning Media: Hurricanes: New Tools for Predicting
This video segment adapted from NOVA scienceNOW features new advances in predicting the intensity of hurricanes. [5:49]
PBS
Pbs Learning Media: Life's Little Essential: Liquid Water
Why is water necessary for life? Why is it the best and possibly only liquid to do the job? This illustrated essay from NOVA Online answers these questions, explaining why planetary scientists are on the lookout for water elsewhere in...
PBS
Pbs Learning Media: Co2 Concentrations at Mauna Loa Observatory, Hawaii
This resource, adapted from the Carbon Dioxide Information Analysis Center, provides a graph of monthly average carbon dioxide (CO2) concentration from 1958 to 2000 at the Mauna Loa Observatory in Hawaii.
PBS
Pbs Learning Media: Mountain Weather: A Climber's Story
In this video segment adapted from Interactive NOVA, a mountain climber's perilous journey reveals the extreme range of microclimates on Mount Kilimanjaro. [4:42]
PBS
Pbs Learning Media: A Five Day View of the Jet Stream
This animation from NOVA Online lets you examine a five-day view of the jet stream.
PBS
Pbs Learning Media: Global Weather Machine
In this illustrated essay from NOVA Online, explore the cyclical process of weather creation and the effects of El Nino on the global weather system.
PBS
Pbs Learning Media: Nisqually Glacier at Mount Rainier
Observe the Nisqually Glacier at Mount Rainier in this video segment from NatureScene. [4:07]
PBS
Pbs Learning Media: Redwoods at Redwood National Park
This video segment from NatureScene describes the characteristics of redwood trees at Redwood National Park. [4:02]
PBS
Pbs Learning Media: Civil Rights Leader, Bayard Rustin
This transcript of an interview for Eyes on the Prize documents the leadership strategies of March on Washington organizer Bayard Rustin.
PBS
Pbs Learning Media: Rev. Fred Shuttlesworth
This oral history transcript from the Birmingham Civil Rights Institute documents the tumultuous life and leadership of the Reverend Fred Shuttlesworth, who survived a bomb attack that destroyed his home.
PBS
Pbs Learning Media: Civil Rights Leader, Rev. C. T. Vivian
In this transcript of an interview for Eyes on the Prize, the Reverend C. T. Vivian remembers his leadership role in the Civil Rights Movement and the risks civil rights activists took in challenging segregation.
PBS
Pbs Learning Media: American Chestnut Tree
This annotated slideshow adapted from KET's Electronic Field Trip to the Forest illustrates how blight decimated the American chestnut tree and the methods scientists use to identify and pollinate the remaining trees to create...
PBS
Pbs Learning Media: Documenting Brown: Brown v Board of Education, 1954
The Supreme Court's landmark opinion overturned its earlier ruling in Plessy v. Ferguson and declared segregated schools unconstitutional.
PBS
Pbs Learning Media: Documenting Brown: Brown v Board of Education, 1955
The Supreme Court's opinion in Brown II reflects the struggle between federal and state governments on how and when school desegregation would occur.
PBS
Pbs Learning Media: Documenting Brown: Collected Excerpts
This collection of excerpts from legislation and court decisions documents key phases of the legal struggle to gain and implement equal education.
PBS
Pbs Learning Media: Hyde County School Boycott
Narrative tells the story of a yearlong boycott to protest the closing of historically black schools in Hyde County, North Carolina.
PBS
Pbs Learning Media: Documenting Brown: Mendez v Westminster
This 1946 federal court ruling marked a victory for Mexican Americans and chipped away at the "separate but equal" doctrine, declaring segregated schools based on national origin unconstitutional.
PBS
Pbs Learning Media: Documenting Brown: Plessy v. Ferguson
The Supreme Court's 1896 ruling legalized the "separate but equal" doctrine that sanctioned segregation.
PBS
Pbs Learning Media: The Beginnings of the Telescope
This animated essay from the NOVA Web site examines the design of Galileo's refracting telescope and Sir Isaac Newton's reflecting telescope.
PBS
Pbs Learning Media: Radio Waves: Fm vs. Am
This brief essay from A Science Odyssey Web site describes the difference between FM and AM radio waves.
PBS
Pbs Learning Media: Lever an Obelisk
Investigate the mechanical advantage of the lever in this interactive activity from the NOVA Web site.
PBS
Pbs Learning Media: Radio Transmission
This interactive activity from A Science Odyssey tracks the journey of a sound wave from the moment a musician sings into a microphone until his voice reaches the vibrating speakers of an AM Radio.
PBS
Pbs Learning Media: Steam Machine
Explore NOVA Online's interactive steam engine and discover how this machine can convert heat to mechanical energy.