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Why do some rivers run straight while others twist and bend? What causes ocean waves? What is a glacier made of? Dive in with The Standard Deviants as they discuss the role of water in geology. Part of "The Rockin' World of Geology" series.
In this episode, The Standard Deviants explore two different kinds of rock. First, they tackle all there is to know about sedimentary rocks. Next, they move on to metamorphic rocks. Part of "The Rockin' World of Geology" series.
The Standard Deviants explore minerals. Viewers will learn all the basics, starting with that burning question: What is a mineral? Next, The Standard Deviants discuss magma, igneous rocks, plutons, and intrusive rocks. Part of "The Rockin' World of Geology" series.
The Standard Deviants explore volcanoes and what causes them to erupt. They also discuss lava, pyroclastic materials, and the Ring of Fire. Then, it's time for a discussion on weathering. Part of "The Rockin' World of Geology" series.
Characteristics of the Mediterranean climate include great weather, abundant harvests, and some of the world’s most cosmopolitan cities. These climate zones also house diverse ecosystems, which are dependent of the geology of the regions. Part of the "Mediterranean-Climate Ecosystems" series.
Nestled deep inside the Siskiyou Mountains, the caves formed as rainwater from the ancient forest above dissolved the surrounding marble and created one of the world's few marble caves. The highly complex geology found on the Monument contributes to the unusual and rare plants and animals found nowhere else but here. The cave geology is combined with the diversity of plants and animals to tell a unique story of the Pacific Northwest.
Hydrogeologist Shannon Cook talks about how he entered this field of science and what he does on a daily basis. For this career, be sure to study math, science, and geology. Part of the "Career Connections" series.
Host Emily Graslie meets with James Holstein, the Collection Manager of Meteoritics and Physical Geology, to discuss deadly rocks. Some minerals contain harmful elements that can cause damage through repeated exposure in unregulated environments. Part of "The Brain Scoop" 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.
The geology of the Great Plains is a product of long periods of sedimentary buildup followed by equally long periods of erosion. The result today is a dramatic landscape of bluffs, pinnacles and badlands that contain the rich story, of ancient sea creatures, dinosaurs and long extinct, giant land mammals. The Agate Fossil Beds is a landscape that reflects many influences from early animals roaming the valleys and hills to tribal nations they call the High Plains home. Explorers passing through or settling the American West also have a part in the story.
There’s been a lot of research on what happens to a river when dams are built, but what happens when a dam is torn down? With support from the National Science Foundation, Dartmouth College geographer Frank Magilligan is researching the impact of dam removal. His lab has been at the relatively small Homestead Dam, built more than 200 years ago along the Ashuelot River in New Hampshire. He and his team have collected data on the ecology and geology of the Ashuelot River both before and after the Dam removal. Now, they’ll be documenting the processes of ecological restoration and how the path of the river is changing.
Highlights the origins, characteristics, and uses of many kinds of igneous and metamorphic rocks, noting their differences. Concludes with a quiz.
The United States Geological Survey (USGS) volcano seismologist, Seth Moran, describes how seismology and seismic networks are used to mitigate volcanic hazards.
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.
New research reveals why the saber-tooth tiger needed such large teeth.
Learn the differences between sedimentary, metamorphic, and igneous rocks.
USGS (US Geological Survey) technologist Rick LaHusen describes how the development and deployment of instruments plays a crucial role in mitigating volcanic hazards.
Part of a series that features a wide variety of video footage, photographs, diagrams and colorful, animated graphics and labels. For this particular video, students will focus on the term landslide and discover why they happen. Part of the Science Video Vocab Series.
Volcanologist Michael Manga and his students study geysers in Chile and Yellowstone National Park. They thread sensors and cameras into the boiling water in an effort to come up with an explanation for why geysers erupt periodically.
Learn about the difference between weather and climate. Students investigate how glaciers are formed and where they are located. Part of the "Ice Cores: Unlocking Past Climates" series.