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Geologists discuss the tectonic forces that have formed the African continent. Evidence suggests that Africa was once separated from Eurasia by an ancient ocean. Once this ocean disappeared, the continents of Europe and Asia collided. Tectonic forces continue to shape the continent, and some experts believe Africa is being torn apart by these forces. Part of the "Voyage of the Continents" series.
(Source: DCMP)
Africa has gone through many geologic changes, and experts believe it used to be wedged in between other continents. However, it broke free from the other land masses when its crust tore. Part of the "Voyage of the Continents" series.
North America is continually reinventing itself. Experts discuss the various geographic landforms of the continent. They also touch on the active tectonic forces of the San Andreas Fault and the potentially hazardous dormant volcano in Yellowstone National Park. Part of the "Voyage of the Continents" series.
In this episode, experts reveal Europe's geological history. They discuss the discovery of ancient fossils and petrified forests. Part of the "Voyage of the Continents" series.
Geologists discuss the three tectonic collisions that created Europe. These forces continue to alter the continent's landscape. This episode examines the evidence of these changes found in Iceland and the Mediterranean Sea. Part of the "Voyage of the Continents" series.
Massive tectonic forces have shaped the Earth for billions of years. These forces are continuous and have the power to create and destroy. In this episode, experts examine the movements of the Australian and Pacific tectonic plates and the resulting landscape. Part of the "Voyage of the Continents" series.
Over the many billions of years of the Earth's history, the planet has never stopped changing shape. Massive tectonic forces have sculpted and resculpted the world in a never-ending process. This episode chronicles the Himalayas, investigates how Siberia joined other land masses, and discusses tectonic activity that impacts Japan and Indonesia. Part of the "Voyage of the Continents" series.
This animated short tells the story of Alfred Wegener, a German astronomer and atmospheric scientist, who came up with the idea that continents once formed a single landmass and had drifted apart. Continental drift explained why continents' shapes fit together like pieces of a puzzle and why distant continents had the same fossils. During Wegener’s time, the idea was met with hostility but after his death a large body of evidence showed that continents do indeed move. Today the theory of plate tectonics is a fundamental principle in geology.
Introduces students to our planet Earth and its place in the solar system. Explains that Earth's unique position makes it conducive to life. Also explains the basics of earth science, including the water cycle, weather, and continents. Short review.
Steppes, pampas, savannahs, prairies--all are names for the grasslands that are found on most continents. Uses the American prairie to highlight characteristics of grasslands, different kinds of grasses, and examples of plant and animal life. Notes humans' impact on this biome.
Part of a series that features a wide variety of video footage, photographs, diagrams and colorful, animated graphics and labels. Begins with a simple definition of the term and concludes with a critical thinking question. For this particular video, students will focus on Pangaea. Part of the Science Video Vocab Series.
Do the continents move? In this segment, students learn the relationship between a molten core, plate tectonics, and continental drift. Part of the "Earth Science" series.
The fossils of bats resemble the bat of today with some differences related to leg length and location of claws. Their fossils are also found on all the continents except Antarctica, and they appear in these areas around the same time. So what are the origins of bats? Part of the "Eons" series.
Throughout the Cenozoic Era, marsupials and their metatherian relatives flourished all over South America, filling all kinds of ecological niches and radiating into forms that still thrive on other continents. Part of the “Eons” series.
Plate tectonics describes the large-scale motion of large and small plates of the earth's lithosphere. As the plates slide past one another, they create friction and heat. The tension caused by the friction of heat is released either through earthquakes or volcanoes. Part of the "Earth Science" series.
With help from the National Science Foundation, physicists at MIT have created 35 “Fab Labs.” They can bring relatively sophisticated design and manufacturing capability to people around the world with four simply tools. At last count, they were in use on three different continents, helping to create everything from critical infrastructure to simple art work.
Students will explore how the discoveries of specific fossils, the geographic fit of the continents, ocean floor magnetic fields, young ocean rocks, and seafloor spreading provide evidence to support the theory of plate tectonics. Footage from Iceland helps illustrate the power of tectonic movement. Other topics covered include continental drift, Pangaea, tectonic plates, plate boundaries, mountain building, folding, faulting, and landforms.
The geologic processes of mountain building, seafloor spreading and volcanoes are a few examples of the power of plate tectonics. Footage filmed on-location in Iceland, the Canadian Rockies, and Crater Lake help viewers understand the theory of plate tectonics. Colorful animations illustrate the movement of tectonic plates and the role this plays in the development of geologic features. Other terminology includes: theory of continental drift, mid-ocean ridge, plate boundaries, subduction, convergent boundary, and divergent boundary.
Montana State University plant pathologist Gary Strobel travels the seven continents to collect samples of endophytes. Endophytes are microorganisms that live within the living tissue of a plant. With support from the National Science Foundation, Strobel, engineer Brent Peyton and their team, have discovered that endophytes have the ability to make diesel-like fuel. And, amazingly, it takes the team just a few weeks to create the fuel. Part of the National Science Foundation Series "Science Nation."
