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Ages: 7 - 12
Weather & Meteorology : What Causes Lightning?
From YouTube, produced by eHow
As clouds get bigger with the continuous rising of air, they interact with particles of ice and dirt to create a buildup of static electricity. Learn about the interaction of electrical charges in a cloud with charges on the ground with help from a m... [more]
Found by Barb in Storms
August 12, 2009 at 06:54 PM
Not Right For WatchKnowLearn
Ages: 8 - 13
Red Ribbon Week - Drinking and Smoking
From YouTube, produced by schooltoolstv
Red Ribbon Week.  What's the best way to help someone you love who is struggling in life?  This video addresses what to do if you know someone who is drinking or smoking.  And what if they are adults?  (01:08)
October 25, 2011 at 11:44 AM
Comments: 1
Not Right For WatchKnowLearn
Ages: 11 - 16
Battle of Stalingrad
From YouTube
Silent news reel footage of the Battle of Stalingrad. Stalingrad was the bloodiest battle in history, over 1.5 million were killed.
July 18, 2009 at 12:18 PM
Comments: 1
Not Right For WatchKnowLearn
Ages: 13 - 18
The Digestive System : Introduction to the Digestive System (18:01)
From YouTube, produced by mrfordsclass
In this video we introduce the digestive system. We look at the two types of digestion: mechanical digestion and chemical digestion. We also look at the two subdivisions of the digestive system: the digestive tracts and the accessory structures. This... [more]
October 6, 2014 at 10:40 AM
Not Right For WatchKnowLearn
Ages: 11 - 18
Where Do Your Genes Come From? - 23andMe
From YouTube
Animation showing where chromosomes come from and how they are passed from parent to offspring. Video simplifies a complex process, and covers major topics such as crossing over, recombination, and mitochondrial DNA. Grades 7-12. 4:14 min.
Found by laneyk in Genetics
August 10, 2009 at 04:53 AM