Summary: Sediment sequences deposited under glacial conditions during the Pleistocene period cover some 10% of the earth's land surface. This program concentrates on the interpretation of a sediment sequence exposed in a river cliff cut by the River Severn in England. Techniques of sampling and analysis are illustrated, with emphasis on the measurement of particle size and of particle dip and...
Format: software, multimedia
Publisher / Publication Date: Films Media Group 2009
View online at AVOD
Summary: Following National Geographic explorer and correspondent Nick Baker, this program takes a remarkable 5,000-mile road trip along one of the greatest mountain ecosystems in the world-the Rockies. Beginning at the northernmost reaches of the Yukon and ending in the breathtaking parklands of Yellowstone, Baker sets out to explore the natural history of these locations in the wake of an ambitious...
Format: software, multimedia
Publisher / Publication Date: Films Media Group 2010
View online at AVOD
Summary: In 2007, the American honeybee population almost disappeared, the Northwest Passage became navigable without the aid of icebreakers, and China surpassed the United States in total carbon emissions. This program documents the most ominous environmental milestones of that year, providing an illuminating snapshot of the changing condition of the planet. Replete with fires and floods, migrations...
Format: software, multimedia
Publisher / Publication Date: Films Media Group 2010
View online at AVOD
Summary: Any study of Planet Earth, with its surface area of approximately 200 million square miles, will obviously have a lot of ground to cover! Using high-quality film footage and detailed animations, this collection of 49 video clips (30 seconds to 2 minutes each) examines the history of Earth, the structure of Earth, tectonics and volcanism, water and the oceans, the evolution of landscapes, the...
Format: software, multimedia
Publisher / Publication Date: Films Media Group 2011
View online at AVOD
Summary: When the USDA replaced MyPyramid with MyPlate, the goal was to simplify dietary recommendations by providing at-a-glance guidelines without having to weigh and measure at every meal. This program explores the key concepts of MyPlate and how it correlates to the more detailed Dietary Guidelines for Americans, including portion sizes, proportions, food group choices, and caloric balance. The...
Format: software, multimedia
Publisher / Publication Date: Films Media Group 2011
View online at AVOD
Summary: This program analyzes the dynamic nature of rivers and the relationship between their forms and processes. It examines the various functions a single river needs to perform, and shows how to measure river form and process, relate the two, and synthesize several attributes of the form of a river channel. It examines the differences between low and high flow, and explains how to calculate the...
Format: software, multimedia
Publisher / Publication Date: Films Media Group 2005
View online at AVOD
Summary: At ground level, shallow seas, broad beaches, dunes, and waterlogged hollows seem to comprise a chaotic environment. In fact, there is order and form, produced by the interaction of wind, vegetation, and moving sand. Because sand dunes develop rapidly, the development of a landform can be observed. Measuring wind velocity demonstrates how saltation, sand movement, and erosion happen. The...
Format: software, multimedia
Publisher / Publication Date: Films Media Group 2009
View online at AVOD
Summary: From the gentle ebb and flow of a neap tide to the crashing force of mammoth breakers, the Earth's ocean waters are constantly at work, shaping and eroding beaches, fjords, sea cliffs, and other geographical features. This program shows how waves, currents, and tides interact dynamically with the planet's coastal environments. Presenting vital information on emergent and submergent coastlines,...
Format: software, multimedia
Publisher / Publication Date: Films Media Group 2011
View online at AVOD
Summary: Yosemite is a glaciated landscape born millions of years ago when colliding tectonic plates created the longest and highest mountain range in the continental United States. It is known for its steep granite cliffs, impressive waterfalls, and the world's largest living trees, the Giant Sequoias. But this is no five-star resort-this is the wilderness. With more than 700,000 acres of land,...
Format: software, multimedia
Publisher / Publication Date: Films Media Group 2007
View online at AVOD
Summary: For thousands of years, the only threat to polar bears came from humans. Nothing has changed-except now it is fossil fuel consumption, not spears and guns, that pushes Ursus maritimus toward extinction. Depicting the hapless species as the proverbial canary in a coal mine, this program studies the intensifying impact of climate change on the Arctic region. Viewers learn how the entire Arctic...
Format: software, multimedia
Publisher / Publication Date: Films Media Group 2010
View online at AVOD
Summary: This program looks at the way soils can vary even within a small area of a forest. A well-developed podzol is examined in detail, with samples taken from the center of each horizon and then analyzed for organic content, soil acidity, mineral content, and particle size distribution. The measurements and analyses demonstrate why three soil profiles can be so very different in closely contiguous...
Format: software, multimedia
Publisher / Publication Date: Films Media Group 2005