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There are 6 videos in this category and 32 videos in 5 subcategories.
Category Videos
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Not Right For WatchKnowLearn
Ages: 8 - 12
782 Views:
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There are many parts to the human eye, all of which work together to both perceive and respond to light. Impulses that they eye observe are sent through nerve fibers to the brain, where they are analyzed. Learn more about your sense of sight with t...his cartoon animation from StudyJams. A short, self-checking quiz is also included with this link.
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May 16, 2011 at 10:24 PM
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Not Right For WatchKnowLearn
Ages: 6 - 18
465 Views:
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This 1:17 long video provides some images in which may indicated color blindness. Color Blindness is mainly the result of hereditary deficient X chromosome. Because men only have 1 X chromosome, they are more likely to be color blind. A good video to... show all students individually so as not to embarrass them. No audio.
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March 21, 2012 at 03:17 PM
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Not Right For WatchKnowLearn
Ages: 10 - 18
799 Views:
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Founded in 1981, MIRA provides service dogs to the visually impaired or otherwise disabled to help them live their lives independently. (02:45)
May 22, 2010 at 01:17 PM
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Not Right For WatchKnowLearn
Ages: 10 - 18
735 Views:
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Rods and cones exist on the eye's retina, and it's the job of
the cones to help the eye see color. Learn from a science teacher how color changes depending on its wavelength in this clip. English Captions for note taking. (1:33)
April 15, 2010 at 12:04 PM
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Not Right For WatchKnowLearn
Ages: 18 - 18
429 Views:
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Have you ever wondered how well or how much your baby can see? During the first months of her life, her eyesight will be improving more and more.This two minute video shows the development of an infant's eyes during the first months of her/his life. ...(02:08)
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March 21, 2012 at 03:11 PM
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Not Right For WatchKnowLearn
Ages: 11 - 18
865 Views:
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Video shows a basic example of color blindness. Color blindness occurs when a single type of color-receptor cone is missing from the retina, due to a genetic defect, rendering the person unable to distinguish some colors from others. In this test car...d, both the fork and spade can be seen by people with normal color vision. The spade is purple, a color which is received by the receptors for blue-green in the retina. Since green-blind people have no green receptor cones they cannot distinguish the spade from the background. Similarly, red-blind people have no red-receptor cones and so fail to see the fork, which is red and should, therefore, stimulate the cones which receive red. Grades 6-12. 55 sec.
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August 4, 2009 at 12:10 PM
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