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Not Right For WatchKnowLearn
Ages: 14 - 18
2144 Views:
Thinkwell Chemistry: Charles's Law
From YouTube, produced by Thinkwell
This is an excellent presentation in which the lecturer discusses Charles' Law  in easy-to-understand terms. This is a clip from a larger segment and is done in a lecture-style format. There are times when the instructor is in a small window in the c... [more]
May 8, 2010 at 07:52 PM
Not Right For WatchKnowLearn
Ages: 11 - 18
2269 Views:
Why do Leaves Change Color in the Fall?
From YouTube, produced by Davey Expert and ISA Certified Arborist Greg
In this episode of Talking Trees, Davey Expert and ISA Certified Arborist Greg  Mazur explains why tree leaves change color in the fall, and why fall colors can be intense one year and less so the next. (03:39)
Found by teresahopson in Trees
October 16, 2011 at 05:44 PM
Not Right For WatchKnowLearn
Ages: 7 - 15
5642 Views:
Why Does Earth Have Different Seasons?
From YouTube
This video discuss why we have the different seasons. It discusses the axis and shows are it links the two poles.  Also discusses the tilt of the Earth and how it affects the seasons of the year and the length of day and night.  It shows the tilt of ... [more]
Found by Barb in Seasons
July 23, 2009 at 04:28 PM
Comments: 1
Not Right For WatchKnowLearn
Ages: 9 - 15
2092 Views:
Happy 100 Birthday National Parks!: Arches National Park
From YouTube, produced by StandardNet
Celebrate our National Parks!   This video gives the history of Arches National Park.and discusses the natural stone arches, how long ago the arches were formed, how they were formed, climate, and how the park is a constantly-changing landscape.  The... [more]
Found by Barb in Utah
August 13, 2009 at 07:31 AM
Not Right For WatchKnowLearn
Ages: 7 - 18
4287 Views:
Famous Early Failures Who Moved on to Great Things
From YouTube, produced by bluefishtv.com
This is a very motivating video that encourages students to learn from their failures. It does this by showing numerous very famous people who succeeded despite their early failures. (01:17)
July 10, 2009 at 09:36 AM
Not Right For WatchKnowLearn
Ages: 12 - 18
6462 Views:
NASA | Earth's Water Cycle
From YouTube, produced by NASA
Water is the fundamental ingredient for life on Earth. Looking at our Earth from space, with its vast and deep ocean, it appears as though there is an abundance of water for our use. However, only a small portion of Earth's water is accessible for ou... [more]
August 15, 2012 at 06:56 PM
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