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There are 36 videos in this category and 30 videos in 5 subcategories.
Category Videos
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Not Right For WatchKnowLearn
Ages: 10 - 18
1160 Views:
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Water covers over 70% of the Earth, cycling from the oceans and rivers to the clouds and back again. It even makes up about 60% of our bodies. But in the rest of the solar system, liquid water is almost impossible to find. So how did our planet end u...p with so much of this substance? And where did it come from? Zachary Metz outlines the ancient origins of water on Earth. (03:53)
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May 2, 2017 at 07:06 PM
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Not Right For WatchKnowLearn
Ages: 8 - 18
101 Views:
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We continue our exploration of the Water Cycle by drinking some dinosaur pee. Yep! Well, it's a little less gross that it sounds. It turns out that all of the water on Earth is just constantly recycled in what we call a closed system. No water comes ...in and no water goes out. So that means that, at some point, it's possible the water we're drinking was once dinosaur pee. (04:47)
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June 25, 2017 at 10:20 AM
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Not Right For WatchKnowLearn
Ages: 7 - 13
4331 Views:
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In this video segment from ZOOM, two cast members repeat an experiment designed to separate fresh water from a liquid solution, this time using colored sugar water in one solar still and orange juice in another. The basic still design they employ tra...ps water vapor that is created when the Sun's heat causes water to evaporate. As the vapor cools, it condenses and trickles down to a collection container. Were they successful in their experiment this time? A final taste test reveals all. This video could also be used with a lesson about the scientific process and forming a hypothesis. Closed captioning included. Run time 03:55.
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November 3, 2010 at 09:52 PM
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Not Right For WatchKnowLearn
Ages: 13 - 18
1365 Views:
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A pleasant water fall in a park near my home. Lovely background noise. ------------------- If you like this series, please subscribe. Have suggestions for fu...
September 19, 2014 at 06:38 AM
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Not Right For WatchKnowLearn
Ages: 9 - 18
3407 Views:
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Freshwater seems abundant, but when accounting for all the water on Earth, it's in limited supply. Just three percent of the water on our planet is freshwater. A majority of this water, about two percent of the world total, is contained in glaciers a...nd ice sheets or stored below ground. The remaining one percent is found in lakes, rivers and wetland areas or transported through the atmosphere in the form of water vapor, clouds and precipitation. Rain and snowfall replenish freshwater sources, making it vital to know when, where and how much water is falling at any given time. Using NASA's Global Precipitation Measurement satellite, researchers can track precipitation worldwide and monitor levels from space. (02:49)
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August 17, 2014 at 01:55 PM
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Not Right For WatchKnowLearn
Ages: 12 - 18
10222 Views:
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Thank You NASA Astronaut Barry Wilmore, Gov. Haslam and Congratulations Tennessee STEM students! Keep studying!! Water is the fundamental ingredient for life on Earth. Looking at our Earth from space, with its vast and deep ocean, it appears as thoug...h there is an abundance of water for our use. However, only a small portion of Earth's water is accessible for our needs. How much fresh water exists and where it is stored affects us all. This animation uses Earth science data from a variety of sensors on NASA Earth observing satellites as well as cartoons to describe Earth's water cycle and the continuous movement of water on, above and below the surface of the Earth. (05:53)
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August 15, 2012 at 06:56 PM
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Not Right For WatchKnowLearn
Ages: 12 - 18
5017 Views:
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A two-minute video that explains what water is, how much there is on Earth, and how it acts. (The video may start with a brief advertisement.)
October 14, 2010 at 12:05 AM
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Not Right For WatchKnowLearn
Ages: 3 - 10
5791 Views:
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This is a three-minute video with animation and song. (03:17)
June 29, 2012 at 06:21 PM
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Not Right For WatchKnowLearn
Ages: 7 - 12
2433 Views:
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This cartoon uses simple illustrations and examples to help explain what morning dew is. Some key vocabulary words include: dense, condensation, and dew drops. (01:41)
April 10, 2012 at 02:39 AM
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Not Right For WatchKnowLearn
Ages: 7 - 12
7493 Views:
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This cartoon uses simple illustrations and examples to teach about the water cycle. (06:21)
April 10, 2012 at 02:40 AM
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