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The path the Earth takes around the sun is in just the right place. The trajectory of the Earth's orbit ensures life is able to exist, and this orbital journey influences almost everything on Earth. Part of the "Orbit: Earth's Extraordinary Journey" series.
(Source: DCMP)
Host award-winning geoscientist, Richard Alley provides an eye-opening look at some of the world's most important case studies in smart energy. Alley travels to Spain and Morocco where large-scale solar farms and individual photovoltaic panels atop tents in the Sahara are beginning to bring the vast potential of the sun down to Earth. In Brazil, abundant natural resources are transformed into efficient, sustainable biofuel, making Brazil the only nation whose cars could keep running if all gasoline were to vanish. In Denmark, and West Texas, citizens have taken sustainability into their own hands by becoming stakeholders in wind turbines. And in China, he explores multiple sustainable energy technologies, including exclusive footage from GreenGen, the world's most advanced low-carbon emissions power generation plant. Part One Earth: The Operators’ Manual.
In this segment, students learn about the process of weathering. It is the breaking down of rocks, soil, and minerals through contact with the earth's atmosphere, water, and biological organisms. Other topics covered include erosion, surface water, groundwater, wind, and waves. Part of the "Earth Science" series.
Uses trilobite fossils as an example to illustrate the challenges scientists face in understanding the prehistoric world and its place in time. Examines fossil sites in Australia, discusses how fossils are formed, and tells how a fossil's world is recreated.
Earth spins around its axis at an angle of 23 degrees. This means that as Earth orbits the sun, different parts of the planet get more or less exposure to the sun. The tilt of the Earth is responsible for the seasons, climate, and weather. Part of the "Orbit: Earth's Extraordinary Journey" series.
This segment is all about climate and the role of water and wind. Climate is the statistics of weather over long periods of time. Other topics covered include atmosphere, oceans, and weather. Part of the "Earth Science" series.
This program is devoted to the senses that bring information of more distant events. The camera shows a reckless driver careening down a road—and then takes the viewer inside his eye, where the image of the potential crash site is pictured. The camera enters the ear, showing how the linked bones vibrate in response to a sound, and by using a computer graphic sequence, shows how the eye focuses on an image.
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.
April 22 is Earth Day. It is a national day to focus on the environment, and rallies are held to promote sustainable alternatives for a healthy planet. Part of the “All About the Holidays” series.
While asleep, a young girl dreams that her computer teaches her about earth's geographic areas. Uses a globe to tell about areas of water (oceans, lakes, and rivers), land (mountains, forests, canyons, deserts, plains, and poles), and climates (cold, tropic, and moderate). Emphasizes that all areas and features of earth support life.
The planets closest to the sun, often referred to as the inner planets, are the focus of this program. Colorful animations, along with images captured by space probes, illustrate the characteristics of Mercury, Venus, Earth, and Mars. The fundamental structure of the solar system and the process by which planets revolve around the sun are discussed. Special attention is given to the features that make Earth unique in the solar system. Important terminology includes: sun, orbit, revolve, gravity, inertia, rotation, axis, atmosphere, and spacecraft.
Part of being an active citizen is taking care of the environment. In this episode, students learn all about the history of the environmental movement in the United States and the origins of the holiday known as Earth Day. Part of the "Constitution Hall Pass."
What causes day and night? Why do we have seasons? Through easy-to-understand animations, as well as live-action video footage, these difficult concepts are easily explained. The rotation of Earth on its axis, and its revolution around the sun are the focus of this video. Colorful graphics illustrate the movement of our planet throughout the course of a year. Important terminology includes: axis, tilt, rotation, revolution, orbit, season, solstice, and equinox.
Gravity and erosion are major factors in changing the shape of the surface of Earth. The different types of erosion and the effect of gravity on objects is discussed in this video. Other topics covered include folding, faulting, deposition, creep, mass movement, landslide, surface runoff, alluvial fan, delta, stream erosion, beach erosion, ice erosion, wind erosion, dune, glaciers, and glacial deposits.
Moko is an explorer. As he travels the world continent by continent, he makes many friends and discovers many natural phenomena which sometimes delight him, and other times scare him. Each animated episode recounts an adventure and takes an "original story" approach to explaining these natural phenomena. In this episode, intrigued by the name given to the mountains, "the hills of the round earth," Moko sets off to find out if the earth is really round. An old man tells him if he keeps walking straight, he could travel round the earth and get back to his starting point. Moko follows his advice but since he never got the feeling he was walking around a sphere, he still thinks the earth is flat.
Take a high performance ride through the formation of the third planet from the Sun. Learn how Earth was created and discover what creatures hold clues to how life began. What evil forces threaten the demise of Earth? Complex and controversial, this is the scientific detective story of all time. Cutting-edge graphics are used along with the stories of scientists and explorers who dare to venture into the uncharted territory of the cosmos.
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 the term earth. Part of the Science Video Vocab 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.
Spin plays a key role in controlling the planet. It drives the day and night cycle and controls the weather and climate. This episode explores how the spin of Earth sets the rhythm of life on planet Earth. Part of the "Orbit: Earth's Extraordinary Journey" series.
Scientists and conservationists use the latest technologies as they work to preserve and protect over 5,000 endangered animals. Some techniques include communication with animals, raising orphans, moving animals to new areas, and mating programs in zoos. Uses a Q and A format.
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