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Ages: 11 - 18
The Nine Planets - Mars
From YouTube, produced by Watch Mojo
This short clip explores the 'red planet's' size, orbit, weather, and possible sounds of life. Run time 01:25.
Found by teresahopson in Mars
August 16, 2009 at 06:13 PM
Not Right For WatchKnowLearn
Ages: 12 - 18
The Renaissance: Was it a Thing? - Crash Course World History #22
From YouTube, produced by John Green
In which John Green teaches you about the European Renaissance. European learning changed the world in the 15th and 16th century, but was it a cultural revolution, or an evolution? We'd argue that any cultural shift that occurs over a couple of hundr... [more]
July 31, 2012 at 10:52 AM
Not Right For WatchKnowLearn
Ages: 8 - 12
Periodic Table - by StudyJams
From scholastic.com, produced by Scholastic
The periodic table is a chart that scientists use to organize the elements.  The chart shows each element's name and symbol, the number of protons in its nucleus, and its characteristics and room temperature.  The elements are listed in order by thei... [more]
May 23, 2011 at 07:18 PM
Not Right For WatchKnowLearn
Ages: 8 - 15
Learn about Wintering Monarch Butterflies
From 5min, produced by P Allen Smith
Butterflies bring majestic beauty to our lives, but most of us don't think about them during the winter. So where do Monarchs go when it's cold outside? Learn more about the wintering monarch butterfly in this video with Allen Smith.  Run time 01:47.
Found by begamatt in Butterflies
July 5, 2010 at 01:08 PM
Not Right For WatchKnowLearn
Ages: 7 - 10
Subtraction with Regrouping
From teachertube.com
Explanation and examples of subtracting and regrouping
November 22, 2010 at 10:44 PM