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Featured Videos
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Not Right For WatchKnowLearn
Ages: 12 - 18
2532 Views:
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Check out the top smallest countries in the world! From tiny islands like Nauru, Tuvalu and the Maldives to other small countries, this top 10 list has the tiniest countries on earth! (12:51)
November 2, 2017 at 05:34 PM
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Not Right For WatchKnowLearn
Ages: 6 - 11
9224 Views:
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In this Cyberchase video segment, Harley convinces Harry to help put up a fence in their grandmother's backyard. With no instructions other than to put up the fence in the shape of a rectangle, Harry must figure out how to do this with different leng...ths of fencing. He breaks the problem down by adding up different combinations of pieces and then drawing a diagram to figure out where to place the pieces. (3:25)
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February 20, 2012 at 08:28 AM
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Not Right For WatchKnowLearn
Ages: 9 - 13
3305 Views:
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This short, animated video from Eureka! explains the difference between mass and weight and then procedes to explains work, force and gravity. Run time 04:56
April 15, 2010 at 09:04 PM
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Not Right For WatchKnowLearn
Ages: 14 - 18
3135 Views:
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Join award winning teacher Jonathan Bergmann as he interactively teaches Astronomy: Solving the Problem of Astronomical Motion. Astronomers of antiquity did not connect gravity and astronomical motion. Galileo investigated this connection with exper...iments using projectiles and balls rolling down planks. Galileo put science on course to determine laws of motion and to develop the scientific method. After this introduction, the concept of gravity is explained and demonstrated. Newton's theories on the motion of the moon are also explained. (09:14)
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February 17, 2012 at 04:20 PM
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Not Right For WatchKnowLearn
Ages: 10 - 18
2240 Views:
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Venus is a gorgeous naked-eye planet, hanging like a diamond in the twilight -- but it’s beauty is best looked at from afar. Even though Mercury is closer to the sun, Venus is the hottest planet in the solar system, due to a runaway greenhouse effect..., and has the most volcanic activity in the solar system. Its north and south poles were flipped, causing it to rotate backwards and making for very strange days on this beautiful but inhospitable world. (10:50)
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May 3, 2015 at 05:52 PM
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Not Right For WatchKnowLearn
Ages: 12 - 18
6881 Views:
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Once you have your video in clips on the computer, you need to start putting it together. Learn the basics of video editing with iMovie. The principals are the same for most video editing software. (6:54)
June 30, 2009 at 12:00 PM
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