F-Scale Investigation
Melissa and Elizabeth-->
From Dragonfly TV.  After watching a news report on the destruction caused by a tornado in Siren, Wisconsin, Melissa and Elizabeth were curious about how tornado experts study tornado damage. So they asked permission from Siren city officials to visit the town and examine the evidence. Their question to be investigated: How do you determine the strength of a tornado?

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Dada Part 2
Dada thought that reason and logic had led people into the horrors of war, so the only route to salvation was to reject logic and embrace anarchy and irrationality. However, this could also be thought of as the logical side of anarchy and rejection of values and order; it is not irrational to embrace the systematic destruction of values, if one thinks them to be flawed.

According to its proponents, Dada was not art - it was "anti-art". It was anti-art in the sense that Dadaists prot

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How the Body Works : The Stomach
The stomach acts as a reservoir for food and has a capacity of two and a half pints. Within the stomach, solid food material is churned and kneaded for about three hours until it becomes a semiliquid mass known as chyme. This is a brief video with narration. There are just three still images.
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Volume & Density
This program explains that volume refers to the amount of space an object envelops and that density refers to the amount of mass that is compacted in a given volume.  Eureka was a series of short cartoons on physics that ran on public television in the 1980's.  The video explains the concept in simple and well illustrated way.  Good for students of any elementary school level. Run time 04:50. 
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Time-lapse movie of a Föhn wave
Time lapsed photography of a Fohn Wave. A Fohn Wave is a cloud form created by atmospheric standing waves. These waves are created as stable air flows over a mountain range, and can either form above or in the lee of the range. As an air mass travels through the wave, it undergoes repeated uplift and descent. This video has no sound.  Run time 01:38.
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Visit the Gulf Coast of Mississippi
Mississippi has over three million residents.  Take a trip to visit the Gulf Coast of Mississippi with this professional video. The video also addresses the destruction and rebuilding process after hurricane Katrina in 2005. Some of the Mississippi people/places in this video include: Ocean Springs, Artist Walter Anderson, Shearwater Pottery, Biloxi, Biloxi's casinos, Jefferson Davis' home and library - Beauvoir, and Pass Christian. Run time 06:41.

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Evolution Ep3: Extinction! (1/6)
Some 99.9 percent of all species that have ever lived on Earth are now extinct. This documentary explores why, then confronts a frightening notion: Are humans causing the next mass extinction -- the sixth in the history of life on Earth? This documentary is suitable for high school grades. Run time 10:50.
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Evolution Ep3: Extinction! (2/6)
Some 99.9 percent of all species that have ever lived on Earth are now extinct. This documentary explores why, then confronts a frightening notion: Are humans causing the next mass extinction -- the sixth in the history of life on Earth? This documentary is suitable for high school grades. Run time 10:19.
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Evolution Ep3: Extinction! (3/6)
Some 99.9 percent of all species that have ever lived on Earth are now extinct. This documentary explores why, then confronts a frightening notion: Are humans causing the next mass extinction -- the sixth in the history of life on Earth? This documentary is suitable for high school grades. Run time 10:22.
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Evolution Ep3: Extinction! (4/6)
Some 99.9 percent of all species that have ever lived on Earth are now extinct. This documentary explores why, then confronts a frightening notion: Are humans causing the next mass extinction -- the sixth in the history of life on Earth? This documentary is suitable for high school grades. Run time 10:45.
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Evolution Ep3: Extinction! (5/6)
Some 99.9 percent of all species that have ever lived on Earth are now extinct. This documentary explores why, then confronts a frightening notion: Are humans causing the next mass extinction -- the sixth in the history of life on Earth? This documentary is suitable for high school grades. Run time 10:36.
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Evolution Ep3: Extinction! (6/6)
Some 99.9 percent of all species that have ever lived on Earth are now extinct. This documentary explores why, then confronts a frightening notion: Are humans causing the next mass extinction -- the sixth in the history of life on Earth? This documentary is suitable for high school grades. Run time 02:52.
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The Date of Christmas Explained
Ever wonder why we celebrate Christmas in December? Was December 25 really Christ's birthday? Here's the story behind the date, and why there is a Midnight Mass.  Just Fr. Greg Friedman talking to the camera.  1:30.
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Tropical Rainforest .
In this video scientists study the evolution and rapid destruction of the ecosystem.
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Basic Math: Lesson 7 - Units of Measurement
This lesson consists of providing you with a Self-Tutorial of the basic units used in measurement. Discussed in the video:Units of Time, Units of Length (Metric and U.S.), Units of Area (Metric and U.S.), Units of Volume (Metric and U.S.), Units of Mass (Metric and U.S.), Units of Liquid Capacity (Metric and U.S.), Units of Dry Capacity (Metric and U.S.), and other miscellaneous Units. Conversion Formulas and Abbreviations are also listed.
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Energy from the Sun
With some very simple equipment and knowledge of basic math it is possible to estimate the power output of the sun. This video describes the process and explains the calculations. The video leaves a challenge: use the results to calculate the total energy arriving at the earth each second and using E=mc^2, calculate the mass loss of the sun. Do NOT look directly at the Sun. (10:27)
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Hawaii Ocean Wildlife
This professional and beautiful video footage by National Geographic addresses several different organisms in the Hawaiin waters.  The video begins with statements such as "A string of spectacular undersea volcanoes created the islands and continue to add to the land mass, even today. Hawaii is geologically young but it is surrounded by an ancient ocean filled with creatures whose ancestors preceeded human beings by billions of years." The end of the video addresses the changes on land and sea
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Landing - Lesson 9
This NASA video segment explores how Newton's laws apply to landing an airplane. Viewers watch an instructor at NASA's National Test Pilot School and learn that landing an airplane involves three phases, that the airplane's mass and touchdown velocity determine the necessary runway length, and that smooth landings require pilot skill in balancing forces. The instructor explains how to calculate the minimal runway length. Run time 13:45.
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Force Equals Mass Times Acceleration: Newton's Second Law
This NASA video segment explores how Newton's second law of motion applies to aerospace. Viewers watch an instructor at NASA's National Test Pilot School as he defines the second law and demonstrates how to calculate a person's mass using the law. There is also a discussion about how people experience different g forces at the top and bottom of a roller coaster hill. Footage of the instructor in a fighter jet illustrates what it means to pull 2 and 4 g.
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Acceleration Part I
With the examples of a bicycle and a baseball player, an important rule of physics becomes apparent. Concept: Force = mass x acceleration.  Eureka was a series of short cartoons on physics that ran on public television in the 1980's.  The video explains the concept in simple and well illustrated way.  Good for students of any elementary school level.
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