Visit to An Ocean Planet: Earth's Hydrologic Cycle
The hydrologic cycle is the continual movement of water from one place to another and from one state of matter to another. This site describes a demonstration in which a teacher or small group of students constructs a simple model of the hydrologic cycle. Written instructions and a list of materials are provided. A short list of links to related topics and a vocabulary are also included.
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The Ecological Correlates of Armed Conflict: A Geospatial and Spatial-Statistical Approach to Confli

Joshua D Fisher, ICAR Ph.D Spring 2010 - Dissertation Defense"Few studies of violent conflict focus explicitly on the environmental and ecological relationships that occur in locations that experience violence. Rather, traditional studies of focus o

Author(s): George Mason University

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Physical Resources: Water, Pollution, and Minerals - Chapter Introduction
Steve Altaner
In this module, the Chapter "Physical Resources: Water, Pollution, and Minerals" is introduced.
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Greeks fear tough 2012
Jan 1 - Greeks fear 2012 will be even worse than 2011 as their debt-laden country enters its fifth year of recession. Nick Rowlands reports.
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Give It A Shake, Cornstarch Comes Alive
Science Friday brings you a science fair project for the recession: combine cornstarch and water and make a fluid with bizarre physical properties, on the cheap. Physicists Robert Deegan, of the University of Michigan, and Harry Swinney, of the University of Texas at Austin, explain why the mixture comes to life under the right conditions. (3:40)
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Removing Intestinal Worms and Parasites from a 3 Year Old
Removing Intestinal Worms and Parasites from a 3 Year Old
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Pope calls for peace education
Jan 1 - During his New Year Mass, Pope Benedict says new generations must be educated in justice and peace to avoid further conflict. Sunita Rappai reports.
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Tally Charts and Bar Graphs
How to use tally charts to record survey data and use a bar graph to show the results. Animated and about three minutes in duration.
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Microeconomía I (2011)
El objeto de estudio de la asignatura es el análisis del papel de los mercados en el proceso social de asignación de los recursos escasos. Partiendo de modelos básicos de elección del consumidor y de la empresa se fundamentan modelos más generales sobre el funcionamiento de los mercados. A la vez que se presentan estos modelos estandarizados se introduce al alumno en la construccción y manejo de modelos microeconómicos sencillos.
Author(s): Pedro Álvarez Causelo

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Juvenile Common Lionfish
This short video gives excellent real life, close up footage of a juvenile Common Lionfish. A striking, boldly-patterned fish, the common lionfish (Pterois volitans) has distinctive bands of red and white stripes and conspicuous, elongated, fan-like fins. This is a great resource to help build background knowledge and to help make real world connections between nature and the classroom. (Less Than 2 Minutes)
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Kontrolltest
Test kontrollib 9. klassis kunstiõpetuses omandatud teadmisi. Wordi dokument.
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Creating found poetry from picture books
Students select and read a picture book and afterwards create "found poetry" based on the picture book.
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Solar Eclipses
What is a solar eclipse and why are they only visible in some parts of the world? In this video segment adapted from NASA, astronomer Susan Stolovy uses animations to provide an answer to these questions.
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Air Takes Up Space 1
Instructions and notes for an activity that demonstrates that air takes up space.
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Parallel Axes Theorem
Fact-sheet with a worked example on the use of the parallel axes theorem.
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The Restless Atmosphere Quiz
Establish how well they know the Coriolis effect.
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"That Broke Down the Ethnic Barriers": A Steelworker Describes the Decline of Ethnic Hostility in th
Tensions among industrial workers of different ethnic backgrounds often proved a barrier to unionization in the late nineteenth and early twentieth centuries. It was, for example, a key factor in the defeat of the 1919 steel strike. In the 1930s, however, that began to change, particularly under the auspices of the CIO. In this 1974 interview done by historian Peter Gotlieb in 1974, Polish-American steelworker Joe Rudiak recalled how ethnic hostility declined in the "CIO days," particularly amon
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"Kill the Indian, and Save the Man": Capt. Richard C. Pratt on the Education of Native Americans
Beginning in 1887, the federal government attempted to "Americanize" Native Americans, largely through the education of Native youth. By 1900 thousands of Native Americans were studying at almost 150 boarding schools around the United States. The U.S. Training and Industrial School founded in 1879 at Carlisle Barracks, Pennsylvania, was the model for most of these schools. Boarding schools like Carlisle provided vocational and manual training and sought to systematically strip away tribal cultur
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No Way Out: Two New York City Firemen Testify about the 1911 Triangle Shirtwaist Fire
One of the greatest industrial tragedies in U.S. history occurred on March 26, 1911, when 146 workers, mostly young immigrant women, died in a fire at the Triangle Shirtwaist company in New York City. In this brief excerpt from their testimony before the Factory Investigation Commission, New York City Fire Chief Edward F. Croker and Fire Marshall William Beers commented on the safety lapses--the locking of an exit door, the inadequate fire escapes, and the overcrowded factory floor--that led to
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"We Are Literally Slaves": An Early Twentieth-Century Black Nanny Sets the Record Straight
In folklore the black nursemaid was seen as a dutiful, self-sacrificing black woman who loved her white family and its children every bit as much as her own. Yet the popular images of the loyal, contented black nursemaid, or "mammy," were unfortunately far from the reality for the African-American women who worked in these homes. In 1912 the Independent printed this quasi-autobiographical account of servant life, as related by an African-American domestic worker, which dispelled the comforting "
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