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Constructive/Destructive Forces

There are 17 videos in this category and 297 videos in 33 subcategories.

Category Videos
Not Right For WatchKnowLearn
Ages: 7 - 18
Pyroclastic Flow: Volcano Danger
From discovery.com, produced by Discovery
The dangers of the pyroclastic flow are explained in detail. A must watch video if you are studying the impact of such disasters. The students won't foget this one, but make sure the differences between lava and this one.
September 6, 2010 at 02:45 PM
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Not Right For WatchKnowLearn
Ages: 7 - 12
Landforms by StudyJams
From scholastic.com, produced by Scholastic
Landforms are natural landscapes, such as mountains, hills, valleys, plains, canyons, and deltas.  Some landforms are caused by extreme events like earthquakes, while others are formed over many years by weathering and erosion.  Learn more about the ... [more]
May 21, 2011 at 11:56 AM
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Not Right For WatchKnowLearn
Ages: 6 - 18
Preparedness Now and Earthquake Preparation
From YouTube
This film depicts the realistic outcome of a hypothetical, but plausible, magnitude 7.8 earthquake on the San Andreas fault in California. This is a must watch for all areas where earthquakes may prove a concern. It shows what could happen. Excellent... [more]
October 3, 2010 at 11:43 PM
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Not Right For WatchKnowLearn
Ages: 12 - 18
Geology Kitchen #6 - Weathering
From YouTube, produced by Explorer Multimedia
In this video, weathering concepts are visualized for both physical and chemical weathering processes. Freeze-thaw cycles and water action are discussed using kitchen experiments, as well as wind abrasion. The chemical disintegration and dissolution ... [more]
October 9, 2012 at 10:42 AM
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Not Right For WatchKnowLearn
Ages: 8 - 18
Physical Geography - Forces that Shape Our Earth
From YouTube, produced by TMW Media
Explore the major landforms of our world with spectacular video footage. Look at the various forces that affect our physical environment including glaciers, volcanoes, gravity, rivers, lakes and oceans, movement in the earth, wind and temperature cha... [more]
December 6, 2009 at 08:27 PM
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Not Right For WatchKnowLearn
Ages: 8 - 12
How Does the Earth Change? Part 2
From Vimeo, produced by Mrs. Forsythe
This brief video is only one minute and fifteen seconds, but in this short time, the narrator discusses volcanoes and earthquakes.
April 8, 2010 at 09:49 PM
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Not Right For WatchKnowLearn
Ages: 14 - 18
Earth's Mass Extinctions
From ted.com, produced by Ted TV
Asteroid strikes get all the coverage, but "Medea Hypothesis" author Peter Ward argues that most of Earth's mass extinctions were caused by lowly bacteria. The culprit, a poison called hydrogen sulfide, may have an interesting application in medicine... [more]
April 14, 2010 at 10:16 PM
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Not Right For WatchKnowLearn
Ages: 10 - 15
From kidsknowit.com, produced by Kids Know It
What is isostacy and how do heavy objects effect the surface of the earth?  Find out in this short, computer-animated video.  The following key concepts will be briefly covered: isostacy, balls exhibit isostacy, Earth exhibits isostacy, and causes of... [more]
April 11, 2010 at 05:00 PM
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Not Right For WatchKnowLearn
Ages: 7 - 18
Cómo actuar ante un desprendimiento de tierras (en español)
From practicopedia.lainformacion.com
Ante un desprendimiento de tierras el plan de actuación es claro. Para prevenir una situación desagradable, pide información a las autoridades locales sobre el lugar donde vives. Si pese a todo, ocurre una situación desagradable, mantén todos los s... [more]
June 8, 2012 at 09:43 PM
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Not Right For WatchKnowLearn
Ages: 8 - 15
Scenes from the Belt Meteor Crater
From YouTube, produced by Rod Benson
Although it is called The Belt Meteor Crater, this is actually a sinkhole in Montana. A cavern formed in the Madison limestone (not far below the surface). The video is set to music.  No narration but does include written information on the screen.  ... [more]
July 12, 2010 at 12:10 PM
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