Featured Videos

Not Right For WatchKnowLearn
Ages: 8 - 14
Water Cycle Rap Song
From YouTube, produced by Discovery
A rap about the Earth's water cycle. The song raps about rain, evaporation, and condensation. The music video is from a Bill Nye episode on water.  (01:30)
July 17, 2009 at 01:05 PM
Not Right For WatchKnowLearn
Ages: 9 - 16
Equinoxes and Solstices
From NationalGeographicVideo, produced by National Geographic
Twice a year, day and night fall into perfect balance. Some claim that this astronomical phenomenon, called the equinox, inspires ancient structures to reveal hidden secrets. Run time 02:38.
July 9, 2009 at 06:37 PM
Not Right For WatchKnowLearn
Ages: 9 - 18
Frozen Frogs
From teachersdomain.org, produced by PBS
In this video adapted from NOVA scienceNOW, learn how the common wood frog survives the cold winter. Wood frogs are found in the northern United States and Canada and must endure freezing cold temperatures for parts of the year. In order to survive t... [more]
September 9, 2010 at 10:43 PM
Not Right For WatchKnowLearn
Ages: 6 - 14
Solid Liquid Gas Song
From YouTube, produced by They Might Be Giants
This professionally-made music video from They Might Be Giants sings about the three phases of matter: solids, liquids, and gases.  The video has very simply and repetative lyrics and shows examples of each state.  This is a wonderful introduction to... [more]
February 19, 2011 at 09:06 PM
Not Right For WatchKnowLearn
Ages: 15 - 18
The Hidden Beauty of Pollination
From ted.com, produced by TED Talks
Pollination: it's vital to life on Earth, but largely unseen by the human eye. Filmmaker Louie Schwartzberg shows us the intricate world of pollen and pollinators with gorgeous high-speed images from his film "Wings of Life," inspired by the vanishin... [more]
May 6, 2011 at 08:36 PM