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Ages: 9 - 18
How the Body Works : The Immune Mechanism
From YouTube
A quote from the video: "The immune mechanism is designed to protect the body against attack from invading microorganisms and foreign, potentially harmful molecules. There are four types of immune mechanisms. The nature of the invading antigen determ... [more]
November 15, 2009 at 04:25 PM
Not Right For WatchKnowLearn
Ages: 5 - 10
Cups, Pints, and Quarts
From eduplace.com, produced by Houghton Mifflin
Students will be shown how cups, pints and quarts differ.  The slides model how these measure compare in capacity. 2 cups=1 pint, 2 pints=1 quart, 4 cups=1 quart. User clicks through the slides.
May 14, 2010 at 02:08 PM
Not Right For WatchKnowLearn
Ages: 14 - 18
How to Draw a Realistic Eye
From YouTube, produced by Mark Crilley
This is a video of drawing specialist Mark Crilley showing you the step by step process of drawing a realistic eye.  As he draws the eye, he talks you through it step by step and doesn't leave out any detail.   (10:16)
December 5, 2009 at 11:48 PM
Not Right For WatchKnowLearn
Ages: 10 - 18
How Hot and Spicy Foods Work
From 5min, produced by On Network
Things are getting a little hot and spicy in this episode of Food Science! Why do certain plants cause our mouths such pain? 'Piquant' chemicals in these foods are the results of compounds from certain chemicals in the plants that were designed to pr... [more]
May 5, 2010 at 03:58 PM
Not Right For WatchKnowLearn
Ages: 12 - 18
Egypt's Golden Empire : Pharaohs of the Sun 4/9
From YouTube
For over 3,000 years Egypt was ruled by Pharaohs. But in that last sweep of time, one pharaoh stands out. He would reign for 67 years, command the largest empire on earth and capture the imagination of the world. His name was Ramesses (or Rameses). T... [more]
August 21, 2009 at 03:04 AM