Inner Rocky Planets - Part 2
This video focuses on the little jagged worlds (or Inner Rocky Planets) from their birth to this day, and their compositions, structures, and their differences. (05:18)
Catching Solar Waves
Kelvin-Helmholtz instabilities occur when two fluids of different densities or different speeds flow by each other. In the case of ocean waves, that's the dense water and the lighter air. As they flow past each other, slight ripples can be quickly amplified into the giant waves loved by surfers. In the case of the solar atmosphere, which is made of a very hot and electrically charged gas called plasma, the two flows come from an expanse of plasma erupting off the sun's surface as it passes by pl
Solar eclipse seen by NASA's STEREO spacecraft
The NASA STEREO spacecraft sees the disk of the Moon pass in front of the Sun. No audio. Very brief 8 second clip.
Solar Eclipse In a very special video, one of the scientists travels all the way to China to film a total solar eclipse. Video shows the solar eclipse and explains what is happening. Video is of good quality. This video would be appropriate for middle elementary, middle school, and high school students. It would be good for any student studying about eclipses. Run time 08:53.
In a very special video, one of the scientists travels all the way to China to film a total solar eclipse. Video shows the solar eclipse and explains what is happening. Video is of good quality. This video would be appropriate for middle elementary, middle school, and high school students. It would be good for any student studying about eclipses. Run time 08:53.
3-D animation shows how 5 different types of eclipses occur. Uses models of the earth, moon, and sun. Grades 5-12. 1:43 min.
Eclipse of the Century
In July 1991, the alignment of the Sun, Moon, and Earth produced a rare opportunity — a total solar eclipse with a particularly long duration and a path that crossed easily accessible locations, including a major astronomical observatory in Hawaiʻi. In this video segment adapted from NOVA, learn about the mechanics of solar eclipses and observe the rare 1991 eclipse from the top of Mauna Kea. Run time 05:07.
Total Solar Eclipse Animation
Solar eclipses result from the alignment of the Sun, Moon, and Earth. Total solar eclipses — in which the Sun is completely blocked by the Moon — are a spectacular and rare sight to witness. In this animation adapted from NOVA, see why solar eclipses occur and observe a simulated total eclipse. Closed captioning included. Run time 01:13.
Every now and then, the Sun, Earth, and Moon align so that, when viewed from the Earth, the Moon eclipses the Sun's light. Solar eclipses are fairly common -- the Moon will block out some portion of the Sun at least twice a year. However, it is still a special event to be able to witness a total solar eclipse. In this video segment adapted from NASA, learn how solar eclipses happen and why they are so difficult to witness. Closed captioning included. Run time 01:53.
Partial Solar Eclipse (4/1/2011)
On January 4, stargazers in Europe and the Middle East were treated to the first partial solar eclipse of 2011. This brief, video slide show is set to music and captures images of the event from the United Kingdom, Netherlands, Belgium, and Jerusalem. (0:46)
A Total Solar Eclipse In Varanasi
In this spell-binding professionally-made video, Professor Brian Cox visits some of the most stunning locations on Earth to describe how the laws of nature have carved natural wonders across the Solar System. (03:11)
What Causes Auroras? (continued)
Part 3 "What causes auroras?" Rick Wilder – Virginia Tech. Exploring the aurora when it’s too bright out to see it directly so you have to look at it with instruments. They are measuring the similarities and differences between the North and South polar auroras. Run time 01:56.
Gallery of Auroras - Interactive Site
Auroras are natural atmospheric phenomena created when the solar wind interacts with Earth's magnetosphere, which means that an increase in aurora activity indicates an increase in space weather. In this interactive slideshow from NOVA Online, see stunning images of auroral displays and learn about where and how auroras are formed.
Scientists call them "polar auroras" (or "aurorae polares"). In northern latitudes, the effect is known as the aurora borealis, named after the Roman goddess of dawn, Aurora, and the Greek name for north wind, Boreas. It often appears as a greenish glow or sometimes a faint red, as if the sun was rising from an unusual direction. The aurora borealis is also called the northern polar lights, as it is only visible in the North sky from the Northern Hemisphere. This work is licensed under a Creativ
What Is Food Coloring Made Of?
A cooking instructors explains what food coloring is made of, The clip explains that food coloring can be made with different ingredients depending on the color. Green food coloring is made of seaweed and orange is made from seeds. Check the labels of food coloring to find the exact ingredients.
What Is Gum Made of ?
This clip explains what gum is made of. A cooking instructor explains that gum is made of confectioner sugar, corn starch, chewing gum base, corn syrup, natural peppermint flavor and natural fruit flavors.
What Elements Make Up Starch?
A cooking instructor explains the elements that make up starch, or carbohydrates. The elements include carbon, hydrogen and oxygen. She shows how to identify foods high in starch, such as potatoes and bread. A demonstration is done on how to peel a potato near the end of the video.
Warren Seymour is an Australian who has lived in Italy, England and
France. Today, he and his Ohio-native wife are creating a small
vineyard on their Kidron farm. Run time 07:58.
Malcolm Glad: What We Can Learn From Spaghetti Sauce
Tipping Point author Malcolm Gladwell gets inside the food industry's pursuit of the perfect spaghetti sauce - and makes a larger argument about the nature of choice and happiness
How to make Pizza
How to make pizza - learn how to make pizza- the crust, the sauce and the toppings. Moves rapidly and leaves out part such as how to throw the dough.
How to Roast Pumpkin Seeds
This two minute video shows how to scoop out the numerous seeds in a carved pumpkin and how to roast them finely. The process involves salt and pepper after drying them completely for a day. A good activity around Halloween.