Colonies Diversity
As the colonies along the Atlantic coast took shape in the mid-eighteenth century, they became grouped by region: New England, middle, Chesapeake, and southern colonies. Among these regions there were some general similarities, including temperate climates and more than adequate average rainfall, which are critical factors for maximizing agricultural production.
Surplus crops provided the most important exports in all regions except in New England, although what colonists grew depended on

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The Alien and Sedition Act, 1798
This video is accompanied by text. "The feud with France created bad blood between the political parties in America. Democratic-Republicans and Federalists took advantage of every opportunity to undermine each other. In 1798, the Federalist-controlled Congress exploited the anti-French sentiment sweeping through the colonies to pass a series of laws that, on the surface, promoted American safety but actually were designed to quiet their Democratic-Republican counterparts. The Alien and Sedition
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What is the Cardiovascular System?
An animated explanation of the cardiovascular system that might be appropriate for younger viewers as it is animated; however, even older viewers can learn much as there is a great amount of detail in certain parts. Key vocabulary words include: heart, blood vessels, oxygen, carbon dioxide, right atrium, left atrium, ventricle, valve, blood pressure, systolic pressure, and diastolic pressure.Run time 04:27
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Do The Circulation - Song
This is an animated Science Rock about blood circulation. The song explains the parts the heart has and the way blood goes in it circulation. The importance of exercise to keep the system healthy is also shown
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Heart and Circulatory System - How They Work
The video uses computer animation to give an overview of the organs inside the circulatory system.  The video includes a transcript that begins with "Your heart is a pump. It's a muscular organ about the size of your fist and located slightly left of center in your chest.
Your heart is divided into the right and the left side. The division protects oxygen-rich blood from mixing with oxygen-poor blood.
Together, your heart and blood vessels comprise your cardiovascular system, whic

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HIV Immunity
Excerpted from NOVA: "Surviving AIDS," this video segment showcases the work of Drs. David Ho and Stephen O'Brien. By examining the "outliers" -- in this case, people like Steve Crohn, whose cells repeatedly resisted HIV infection -- Ho and his colleagues found a genetic mutation that prevents the HIV virus from entering the cell. This video segment includes animation of HIV entering a white blood cell through the CD-4 and CCR-5 receptors on the cell's surface. Some individuals have no CCR-5 gen
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Military and Economic Mobilization
In response to growing threats from the Axis Powers during the late 1930s, the United States Congress passed a series of Neutrality Acts and embarked on a more aggressive military preparedness program. In 1938, Congress announced that it sought "a Navy second to none," and doubled the tonnage of combat vessels two years later. The nine battleships and eleven Essex class aircraft carriers that were part of that build-up, however, were not commissioned until 1943. By the summer of 1941, the milita
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Charles Drew, Part 1 of 4
Film documentary on the life and times of Charles Drew who did research 'in the field of blood transfusions, developing improved techniques for blood storage, and applied his expert knowledge in developing large-scale blood banks early in World War II, saving thousands of allied lives' (Wikipedia, 2009).
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Charles Drew, Part 2 of 4
Film documentary on the life and times of Charles Drew who did research 'in the field of blood transfusions, developing improved techniques for blood storage, and applied his expert knowledge in developing large-scale blood banks early in World War II, saving thousands of allied lives' (Wikipedia, 2009).
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Charles Drew, Part 3 of 4
Film documentary on the life and times of Charles Drew who did research 'in the field of blood transfusions, developing improved techniques for blood storage, and applied his expert knowledge in developing large-scale blood banks early in World War II, saving thousands of allied lives' (Wikipedia, 2009).
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Charles Drew, Part 4 of 4
Film documentary on the life and times of Charles Drew who did research 'in the field of blood transfusions, developing improved techniques for blood storage, and applied his expert knowledge in developing large-scale blood banks early in World War II, saving thousands of allied lives'

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Charles Drew - Inventor of the Blood Bank
Commentary, still images, and narration about Charles Drew. Commentary is provided by Dr. Lester Rodney of Morehouse Colllege. Drew did research 'in the field of blood transfusions, developing improved techniques for blood storage, and applied his expert knowledge in developing large-scale blood banks early in World War II, saving thousands of allied lives' (Wikipedia, 2009).
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Overview of Charles R. Drew's Life
Commentary, still images, and narration about Charles Drew. Drew did research 'in the field of blood transfusions, developing improved techniques for blood storage, and applied his expert knowledge in developing large-scale blood banks early in World War II, saving thousands of allied lives' (Wikipedia, 2009).
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The Nephron: Blood Filtration and Urine Production
Professor George Wolfe discusses the nephron, blood filtration and urine production in this video from Thinkwell's online Biology series.  The video uses lecture format along with notes and illustrations on a board.  Run time 12:33.
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Bed Bugs
This professional video gives close-up footage and describes the characteristics of bed bugs. Video shows how bed bugs suck your blood. The video could be used with a lesson about symbiosis and parasites. 2:10 min.
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Cancer Growth
Simple animation shows how a cancerous tumor grows and spreads through the body. Cancer occurs when cells grow out of control. The cells travel through the blood stream. 46 sec.
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Blood Vessels Help Tumors Grow
This video segment, adapted from NOVA, features cancer researcher Dr. Judah Folkman and describes his approach to proving a new idea he had about how tumors grow inside the body. His idea focuses on angiogenesis, the formation of new blood vessels. Dr. Folkman designed experiments to test his central hypothesis and thus prove the support mechanism behind tumors. Closed captioning included.  Run time 05:07.
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Breakdown of Blood Retinal Barrier In Diabetic Retinopathy
Description of how the retinal pigmented epithelial cells maintain the barrier between blood and the retinal tissue. Simple animation with text and computer generated narration. Grades 9-12. 1:13 min.
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Heart Disease - Illumistream Health
Professional video explains what heart disease is and how the heart works. There are multiple conditions that affect how our heart works.  The heart is a pump that pumps blood in and out of the heart.  A doctor explains what is happening using animations and pictures. Atherosclerosis, angina, and aneurisms are discussed. 2:56 min.
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Understanding High Blood Pressure
A quarter of Americans have high blood pressure, or hypertension. In this video, a doctor uses diagrams to explain what high blood pressure means, why it is of concern to your health, and how it is diagnosed.  3:09 min.
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