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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.
(Source: DCMP)
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.
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.
Part of a series that features a wide variety of video footage, photographs, diagrams, graphics, and labels. For this particular video, students will focus on earthquakes and the roll tectonic forces play in their occurrences along fault lines. Part of the Science Video Vocab 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.
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.
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.
Through descriptions of actual volcanic and earthquake occurrences, students will discover how these dynamic forces affect the world. This video discusses the nature and causes of earthquakes and volcanoes. Other topics covered include molten rock, magma, lava, cinder cone, shield volcano, composite volcano, caldera, Ring of Fire, seismic waves, seismograph, and Richter scale.
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.
Hawaii is a state in motion, formed by magma-spewing volcanoes that turn into basalt. The native population of Hawaii considers hot lava an instrument of creation even if it destroys everything in its path. Viewers trace the ever-changing landscape of the Hawaiian Islands due to the active tectonic forces of the region.
Volcanoes and earthquakes! Geysers and boiling mud! Natural forces like these have been working for millions of years, changing the surface of the earth. Examines the layers of earth, a history of continental drift, plate tectonics, and other phenomena at work on our planet.
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.
This segment investigates the geosphere and its components, including plate tectonics, surface processes, and the rock cycle. It also discusses how geoscientists collect evidence to study past, present, and future changes by using computer-based technologies that model and monitor Earth’s systems and processes. Part of the "Visions of Earth" series.
What is a seismic wave? Which of the four types is most destructive? Discover the science behind earthquakes with this animated video.
Hydrothermal vents were originally discovered near the Galapagos Rift in 1977. They form from hot springs produced by underwater volcanoes or tectonic activity. Scientists have found an abundance and assortment of life that has adapted to the harsh, dark conditions surrounding these seafloor vents. Part of the "Deep Sea Dive" 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.
There are three manatee species worldwide: West Indian, West African, and Amazonian. These large creatures average 10 feet long and 1,200 pounds; however, they are incredibly graceful aquatic animals. They also play an important role in maintaining a healthy ecosystem, but they face two major threats: loss of habitat and collisions with boats and ships. Part of the "Endangered Ocean" series.
The rim of the Pacific Basin is one of the most geologically active places on Earth, and scientists have nicknamed the area "The Ring of Fire." The movement of tectonic plates has created a nearly continuous series of oceanic trenches and chains of volcanoes stretching for twenty-five thousand miles. Part of the "Deep Sea Dive" series.
