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Results #1-#10 of 95
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Earth Observatory: Ash Plume across the North Atlantic 
  
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Publisher: Goddard Space Flight Center
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This Earth Observatory image of the day shows the ash plume of Iceland's Eyjafjallajokull volcano spreading from Iceland toward continental Europe. The page includes a short article…
https://earthobservatory.nasa.gov/images/43670/ash-plume-across-the-nort...
Properties of Volcanic Ash 
  
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Publisher: U.S. Geological Survey
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This U.S. Geological Survey site lists and discusses the properties of volcanic ash. The site contains many helpful diagrams, and explains topics including the size of ash particles,…
https://volcanoes.usgs.gov/volcanic_ash/ash.html
Hess proposes sea-floor spreading 
  
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Publisher: Public Broadcasting Service
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This article from PBS relates the story of Harry Hess, the geologist who proposed sea-floor spreading as the mechanism that explains continental drift. The article includes a picture…
http://www.pbs.org/wgbh/aso/databank/entries/do62se.html
Descent to the Mid-Atlantic Ridge 
  
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Scripps Institution of Oceanography
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This page contains journals from the Alvin expedition to the Mid-Atlantic Ridge in 2000. The journals explain the mission's objective to observe the sea floor and undersea geological…
http://earthguide.ucsd.edu/mar/
Life in Death Valley: The Mystery of the Racing Rocks 
  
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Publisher: Public Broadcasting Service
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This PBS site provides information of the mysterious sliding rocks in Death Valley, reviews competing hypotheses, and features the work of a geologist using GPS in her investigation.…
https://www.pbs.org/wnet/nature/life-in-death-valley-the-mystery-of-the-...
Sand Dunes: A Phenomenon Of Wind 
  
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Publisher: Wayne's Word
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This webpage from Wayne's Word provides information about the origin of sand dunes, forms of life present there, and the sounds produced by "booming" dunes. Numerous dunes in the…
https://www2.palomar.edu/users/warmstrong/ww0704.htm
Volcanism on the Moon 
  
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Publisher: San Diego State University Department of Geological Sciences
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This site, from the Department of Geological Sciences at San Diego State University, provides a description of the history and geology of the lunar surface. Photographs illustrate…
http://sci.sdsu.edu/how_volcanoes_work/moon.html
What Really Killed the Dinosaurs? 
  
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Publisher: BBC
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This article from the BBC describes some of the controversy in the theory that the mass extinction of the Cretaceous period was caused by a meteorite impact. The crater thought by…
http://www.bbc.co.uk/sn/tvradio/programmes/horizon/dino_prog_summary.sht...
Do We Know What Killed the Dinosaurs? 
  
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Publisher: NASA
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This article from the NASA Astrobiology Institute raises some issues in the accepted theory that the mass extinction event of the late Cretaceous was caused by a meteorite impact.…
http://www.astrobio.net/news-exclusive/do-we-know-what-killed-the-dinosa...
Investigation 4 - Erosion 
  
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Publisher: Utah Education Network
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This webpage from the Utah Education Network provides directions for a tabletop simulation of erosion by wind and water, requiring only everyday materials. The page includes…
https://www.uen.org/lessonplan/view/9862
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Results #1-#10 of 95