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Teaching Physical Science
There are 10 videos in this category and 0 videos in 0 subcategories.
Category Videos
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Not Right For WatchKnowLearn
Ages: 18 - 18
1441 Views:
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Walter Lewin, professor of physics at the Massachusetts Institute of Technology, sheds light on everyday phenomena such as rainbows and what makes the sky blue and many other things that students of most ages can understand better. A great video to g...et students interested in science. There are some data and terminology that needs to be explained to students in this 1:15 video that uses a lecture and slides. (1:14:27)
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July 4, 2011 at 03:02 PM
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Not Right For WatchKnowLearn
Ages: 18 - 18
2908 Views:
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What explanation might account for the differences between the states of matter, as well as explain its different properties? Session 2 introduces the particle model of matter, the principles which underlie a wide range of phenomena. By contrasting t...his model with what is variously called the continuous, continuum, or plenum model, this session shows how the particle model is useful for making accurate predictions about a variety of behaviors of matter on a macroscopic scale.
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March 16, 2010 at 09:50 PM
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Not Right For WatchKnowLearn
Ages: 14 - 18
1036 Views:
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How a PhD student used Khan Academy to better understand saltatory conduction. (00:33)
July 20, 2012 at 08:04 PM
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Not Right For WatchKnowLearn
Ages: 18 - 18
2328 Views:
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Where does the weight go when we “lose weight”? What happens when iron rusts? Why are exploding stars able to turn other elements into gold when the alchemists were not? In this session, we will extend and refine the particle model by taking a closer... look at the particles—atoms and molecules—and will discover how the law of conservation of matter applies to chemical changes.
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March 16, 2010 at 09:52 PM
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Not Right For WatchKnowLearn
Ages: 18 - 18
2592 Views:
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What makes the liquid in a thermometer rise or fall in response to temperature? Which contains more heat—a boiling teakettle or a swimming pool of lukewarm water? In this session, we focus on the difference between heat and temperature and examine ho...w both are defined in terms of particles. We also use the particle model to explain a number of everyday phenomena, from why things expand when they are heated to the role that temperature plays in changes of state.
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March 16, 2010 at 09:56 PM
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Not Right For WatchKnowLearn
Ages: 18 - 18
2374 Views:
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Matter is one of the big ideas in science. Most areas in physical science can be discussed and explained in terms of matter or energy, and matter is a subject that naturally bridges to the other sciences (chemistry, life, earth science, etc.). In thi...s session, we’ll build a working definition of matter, learn to distinguish between its “accidental” and “essential” properties, and explore it through classification, an activity with a rich history in science.
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March 16, 2010 at 09:48 PM
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Not Right For WatchKnowLearn
Ages: 18 - 18
2308 Views:
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The video opens with children in the Science Studio observing a common magic trick in which matter seems to disappear. As they try to follow the button that vanishes from their field of vision, the ideas they express about “where things go” become th...e recurrent theme as they and other children explore what happens to matter through a series of physical changes like melting, mixing, and dissolving. Which principles of the particle model apply to these changes?
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March 16, 2010 at 09:51 PM
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Not Right For WatchKnowLearn
Ages: 18 - 18
2191 Views:
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In this session, participants extend their understanding of the particle model to explain additional macroscopic phenomena, including the electrical properties of matter. Participants review the progression of ideas covered in the course and anticipa...te future developments in the understanding of matter.
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March 16, 2010 at 09:57 PM
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Not Right For WatchKnowLearn
Ages: 18 - 18
2075 Views:
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What makes a block of wood rise to the surface of a bucket of water? Why do your ears “pop” if you swim deep underwater? In this session, we will examine density, an essential property of matter. We will also look at how particles of matter are in co...nstant motion, leading to a deeper understanding of fluid pressure. Finally, we will investigate the concepts of pressure and density to explain the macroscopic phenomenon of rising and sinking.
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March 16, 2010 at 09:53 PM
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Not Right For WatchKnowLearn
Ages: 18 - 18
2044 Views:
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Why does a hot air balloon rise into the sky? Why does ice rise in water when a lump of solid wax will sink in a jar full of melted wax? In this session, we’ll generalize the model we’ve developed about what rises and what sinks, using the idea of ba...lance of forces.
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March 16, 2010 at 09:55 PM
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