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Pressure in a fluid at depth. This video, which is suitable for high school students, starts with a black screen because the instructor, in his conversational tone, uses it as a 'chalkboard.' Instructor uses different colors for clarification. Run time 09:54.
Found by teresahopson in Khan Academy Series on Fluids, 1-6
August 14, 2009 at 05:35 PM
Ages: 14 - 18
License: Proprietary
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Video 12 in the Introduction to Ethnobotany series. Presented by Will McClatchey. The practice of agriculture has dramatically changed the face of the earth and has served as the economic, political, and social foundation of every human civilization. Agricultural societies are frequently typified by their dependence upon certain crops. Crop plant species that are the most important are under heavy selection pressure with many recognized varieties. In general, the more important the crop, the more varieties that will be named. Plants involved in the development of agriculture have fundamentally shaped history contributing to wars and peace, prosperity and famine. "An army marches on its stomach." This episode considers the evolutionary history that connects development of particular plants as intensively cultivated foods and the rise of political states with armies. (47:08)
Found by teresahopson in History of Agriculture
February 27, 2016 at 04:31 PM
Ages: 14 - 18
License: Undetermined
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Hank bursts our ideal gas law bubble, er, balloon, and brings us back to reality, explaining how the constants in the gas law aren't all that constant; how the ideal gas law we've spent the past two weeks with has to be corrected for volume because atoms and molecules take up space and for pressure because they're attracted to each other; that Einstein was behind a lot more of what we know today than most people realize; and how a Dutch scientist named Johannes van der Waals figured out those correction factors in the late 19th century and earned a Nobel Prize for his efforts. (11:35)
Found by teresahopson in Gases
May 26, 2013 at 03:16 PM
Ages: 13 - 18
License: Proprietary
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Views: 2355 |
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Ben Edwards, a renowned volcanologist and professor of earth sciences at Dickinson College, simulates a volcanic eruption by rapidly releasing gas under pressure, using a trash can and Diet Coke bottle. (01:05)
Found by oneiljos in Formation of Volcanoes
October 21, 2016 at 08:49 AM
Ages: 10 - 18
License: Educational Community License
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Views: 2354 |
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A song about what happens when volcanos erupt: pressure builds up constantly until an explosion occurs. This is an animated video.
Found by Larry Sanger in Formation of Volcanoes
October 25, 2008 at 07:22 PM
Ages: 7 - 12
License: Undetermined
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Views: 2347 |
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This funny video gives good facts about the circulatory system. Some of the key vocabulary words include the following: blood pressure, heart, cardiovascular system, arteries, veins, carbon dioxide, vessels, chambers, atrium, and ventricle. This is a great resource to help build background knowledge for our students and would work well in conjunction with non-fiction texts on the human body, circulatory system, and/or heart. (02:24)
Found by porter1526 in Overview
August 13, 2011 at 08:19 PM
Ages: 8 - 13
License: Proprietary
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Salman Khan offers his intuition of how gases generate pressure in a container and why pressure x volume is proportional to the combined kinetic energy of the molecules in the volume. This video, which is suitable for high school students, starts with a black screen because the instructor, in his conversational tone, uses it as a 'chalkboard.' Instructor uses different colors for clarification. (09:49)
Found by teresahopson in Thermodynamics
August 14, 2009 at 05:52 PM
Ages: 14 - 18
License: CC by-nc-nd
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Views: 2307 |
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Andrew Jackson was both beloved and loathed during his presidency. In this imaginary courtroom, you get to be the jury, considering and weighing Jackson's part in the spoils system, economic depression, and the Indian Removal Act, as well as his patriotism and the pressures of the presidency. James Fester explores how time shapes our relationship to controversial historical figures. Lesson by James Fester, animation by Brett Underhill. (04:53)
Found by teresahopson in 7th Andrew Jackson
July 7, 2016 at 02:49 PM
Ages: 12 - 18
License: Proprietary
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This video introduces an apparatus that can be used to show the mathematical relationship between volume, pressure, and temperature in the combined gas law. It is done in a way that introduces the apparatus to the teacher, but it could still be used in the classroom to introduce it to the students. It does not go into much major detail about the gas law itself, or the math involved, but it is an interesting device that might keep students interested in the topic. This video is a pub for the manufacturer of the apparatus but there is push to buy it.
Found by jpalmertree in Gas Laws
February 7, 2012 at 12:22 PM
Ages: 12 - 18
License: Undetermined
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Views: 2210 |
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Obesity is second only to smoking as the leading cause of preventable deaths in the United States. Ironically, in the midst of this epidemic, American families are chronically under-nourished. It has been suggested that one cause of today's obesity crisis is the decline of the family meal. Under ever-increasing time and financial pressures, parents may be spending less time with their children, who may in turn feel isolated and depressed, and use food to make up for the vital nurturing connection that occurs when families eat together. (19:00)
Found by Mrs Jefferies in Obesity Epidemic
September 25, 2011 at 04:35 PM
Ages: 10 - 18
License: Proprietary
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Views: 2204 |
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Software developers build the modules or layers of code that create software programs to run on computers or electronic devices. This three minute interview with a developer helps students understand what is needed and the pressures and problems of making it happen.
Found by freealan in Software Engineer
March 28, 2011 at 10:22 PM
Ages: 10 - 18
License: Undetermined
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Views: 2175 |
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Professor Lewin packs a ton of information in this lecture. He covers Archimede's principle and hydrostatic pressure. He demonstrates how the center of gravity determines the stability of ships and also uses a helium filled ballon to talk about pressure differentials and percieved gravity (49:00).
Found by tyler.arnold in Archimedes' Principle
August 15, 2012 at 09:24 PM
Ages: 16 - 18
License: Public Domain
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Views: 2170 |
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This is a video in which John Green and Hank Green teach you about how human primates moved out of Africa and turned Earth into a real-life Planet of the Apes. And the apes are people! John and Hank teach you about how humans evolved, and the sort of tricks they picked up along the way like complex tool use, big brains, and fighting. Our ancestors adapted to the grasslands of Africa, and went through several iterations including Australopithecus, Homo Habilis, and Homo Ergaster/Erectus. Our ancestors tamed fire, made pressure flake tools, and eventually smartphones. (16:14)
Found by teresahopson in Brief Overview of Evolution
November 9, 2014 at 10:23 AM
Ages: 11 - 18
License: Proprietary
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There are no more evolutionary pressures driving gross human evolution, but that doesn't mean we won't be able to genetically re-engineer ourselves in the future. (02:32)
Found by teresahopson in Human and Primate Evolution
February 26, 2012 at 06:16 PM
Ages: 13 - 18
License: Proprietary
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Until recently, most natural gas in Canada came from what are referred to as "conventional" sources -- with the gas trapped under relatively high pressure in relatively loose formations which allowed the gas to move freely to the wellhead for production.
In recent years, however, production of natural gas from conventional sources here in Canada has fallen, despite record levels of drilling and completion. With demand for natural gas continuing to grow, additional sources of natural gas needed to be found and attention has turned, increasingly, to what are deemed "unconventional" sources of natural gas. Natural gas from coal, or coal bed methane, is the natural gas from unconventional sources most widely known. This video serves as a primer about this increasingly important source of natural gas. (04:29)
Found by teresahopson in Fossil Fuels
June 5, 2010 at 05:53 PM
Ages: 12 - 18
License: Proprietary
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Bt Corn
From teachersdomain.org, produced by NOVA
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Scientists are now able to insert the genes of Bacillus thuringiensis, or Bt, into farmers' crops in order to prevent a hostile takeover by pests. But what happens when the pests become resistant? Learn about the "refuge" system and how researchers are manipulating selective pressures in order to try and slow the development of Bt-resistant pests. Run time 05:33.
Found by begamatt in Agriculture
August 14, 2010 at 03:43 PM
Ages: 14 - 18
License: Undetermined
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Views: 1949 |
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Video is narrated by Melissa Schenk, a meteorologist. Predicting the wind is an aspect of weather prediction you'll want to master before becoming a meteorologist, learn how to predict the weather. In this video she discusses wind is important in forecasting temperature, isobars (which are a line of constant pressure), if isobars are close together or far apart, how these affect the wind, direction of wind and how these affect the temperature that is going to occur. This video includes closed captioning. Run time 01:41.
Found by Barb in How to Predict the Weather, Series
July 29, 2009 at 07:10 AM
Ages: 13 - 18
License: Proprietary
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How Does Cancer Affect the Body? Part of the series: Cancer Facts. Cancer affects the body by causing cell growth, which puts pressure on adjacent organs and bodily systems, or causes cells to break off and move to another area of the body. (00:46)
Found by teresahopson in Cancer Overview
January 3, 2011 at 09:11 PM
Ages: 12 - 18
License: Proprietary
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Views: 1770 |
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Fueled by economic pressure to maximize crop yields and government incentives to produce only one type of crop, contemporary American farmers have been facing a crisis reminiscent of one that hit the Great Plains in the 1930s. In this video segment adapted from Interactive NOVA, learn why more and more farmers are opting for sustainable, organic farming practices to help preserve the valuable topsoil that they rely on for their livelihoods and society relies on for a continuing supply of grains and produce. Run time 03:06.
Found by begamatt in Agriculture
October 31, 2010 at 07:42 PM
Ages: 10 - 18
License: Undetermined
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Views: 1624 |
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This 2:32 minute long video is a trailer to the movie Race to Nowhere, which is about the stress placed on students to do well. Although it is limited and lacks any statistics, it does present a compelling argument to long at the decision to have more standardized testings in schools and the pressure it places on students.
Found by freealan in Student Assessment
May 1, 2011 at 12:40 AM
Ages: 11 - 18
License: Undetermined
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Views: 1547 |
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This short video gives basic facts about the human blood. Key vocabulary words include cells, blood, red blood cells, white blood cells, high blood pressure, low blood pressure, and antigens. This is a good resource to help build background knowledge and would work well as an introductory lesson to the human body and blood. (4:21)
Found by MakeMeGenius in Blood & Lymph
April 10, 2012 at 01:11 AM
Ages: 6 - 13
License: Undetermined
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Views: 1540 |
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Boyle's Law states that pressure and volume of a fixed amount of gas are inversely proportional. If that seems confusing to you, check out this video. The teacher in this video makes the concept simple. She draws simple diagrams and graphs on the board to help illustrate Boyle's Law. She also works a sample problem and gives great explanations (04:32).
Found by tyler.arnold in Gas Laws
October 16, 2012 at 09:33 PM
Ages: 15 - 18
License: Public Domain
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Views: 1526 |
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Mars Rover. Bruno Mars. Mars Bars. It's pretty clear we're OBSESSED with the idea of Mars, especially in regard to it being a potential colony for earthlings. But is that really the best option? Is there a better place for us to colonize in our solar system? Well, how about Venus? Sure the surface temperature is over 450 degrees Celsius, with crazy pressure, but there might be a smart way around that, making Venus a better option for long term colonization than Mars! How? Watch this week's episode of SpaceTime and find out!
Mars One. The Mars Rover. Bruno Mars. Mars Bars. It's pretty clear we're OBSESSED with the idea of Mars, especially in regard to it being a potential colony for earthlings. But is that really the best option? Is there a better place for us to colonize in our solar system? Well, how about Venus? Sure the surface temperature is over 450 degrees Celsius, with crazy pressure, but there might be a smart way around that, making Venus a better option for long term colonization than Mars! How? Watch this week's episode of SpaceTime and find out!
Mars One. The Mars Rover. Bruno Mars. Mars Bars. It's pretty clear we're OBSESSED with the idea of Mars, especially in regard to it being a potential colony for earthlings. But is that really the best option? Is there a better place for us to colonize in our solar system? Well, how about Venus? Sure the surface temperature is over 450 degrees Celsius, with crazy pressure, but there might be a smart way around that, making Venus a better option for long term colonization than Mars! How? Watch this week's episode of SpaceTime and find out!
Found by teresahopson in Venus
June 17, 2018 at 09:02 AM
Ages: 11 - 18
License: Proprietary
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Find out how nerves in the blood vessels help to control the blood pressure. (12:10)
Found by teresahopson in Blood - Khan Academy
September 16, 2012 at 07:58 AM
Ages: 12 - 18
License: CC by-nc-nd
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Views: 1408 |
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Low Temperatures
From learner.org, produced by California Institute of Technology
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Solids, liquids, and gases are the substance of every substance in the physical world. With the quest for low temperatures came the discovery that, under the right conditions of temperature and pressure, all elements can exist in each of the basic states of matter.
Found by laneyk in Thermodynamics
March 22, 2010 at 11:01 PM
Ages: 14 - 18
License: Undetermined
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Views: 1280 |
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