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Covering some 70 percent of Earth's surface, clouds play a key role in our planet's well-being. But how do they form, why are there so many types, and what clues can they give us about the weather and climate to come? Try your hand at classifying clouds and investigating the role they play in severe...
Grade Level   6 7 8 9 10 11 12
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2
Published in 2015
El Niño is a series of complex weather patterns that occurs every two to seven years. It causes drastic changes in weather that can lead to billions of dollars in damages, high death tolls, and disease. Find out what causes El Niño, how it can affect you, and why it is so hard to predict it.
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3
On this site, you can visually see the difference between El Nino and La Nina by playing a short video animation.
Grade Level   6 7 8 9 10 11 12
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4
By TED-Ed
Published in 2014
Atmospheric scientist Karen Kosiba studies how tornadoes form and do damage. Getting measurements near the surface of these twisters is difficult, though, and driving into them is a practice mostly reserved for the big screen. In this TEDYouth Talk, Kosiba describes how she and her team use...
Grade Level   6 7 8 9 10 11 12
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5
Published in 2015
Watch this video and learn how clouds are created and cool facts about them.
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6
From his office window in downtown Buffalo, New York, attorney Alfonzo Cutaia captures this cloud formation above Lake Erie. With nearly five feet of snow pummeling the Buffalo area, this impressive timelapse shows the ominous power of the elements.
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7
Published in 2013
Video of a supercell near Booker, Texas.
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8
By TED-Ed
Published in 2016
Lake Maracaibo is the stormiest place on the planet. Thunderstorms rage above this massive body of water for up to 200 days of the year, with each ear-splitting event lasting for several hours. But why? Graeme Anderson lists the factors that create Lake Maracaibo's seemingly everlasting storms.
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9
Published in 2017
From the perspective of us here on Earth, clouds are usually pretty boring. Sure, sometimes we spot one that looks cool or see a unique formation that we take a photo of for Instagram and then move on with our lives. But for astronauts and satellite cameras looking down on th eplanet from above,...
Grade Level   K 1 2 3 4 5 6 7 8 9 10 11 12
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10
Published in 2015
Tornadoes, nearly three-quarters of which occur within the US, are unpredictable and can cause massive damage. New tools and data are helping scientists learn more about when they might form and what paths they might take.
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11
Discover the ways in which air and water interact in a vast complex system. This video clip illustrates the interconnections between rising sea levels, forest fires, droughts, heat waves, typhoons, powerful storms, and flooding.
Grade Level   4 5 6 7 8 9 10 11 12
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12
Published in 2016
This visualization, comprised of imagery from the geostationary satellites of EUMETSAT, NOAA and the JMA, shows an entire year of weather across the globe during 2015, with audio commentary from Mark Higgins, Training Manager at EUMETSAT. The visualization has been produced by EUMETSAT's data...
Grade Level   K 1 2 3 4 5 6 7 8 9 10 11 12
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13
A simple key for identifying clouds.
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14
This NASA/NOAA cloud chart is in Spanish. View cloud formations and descriptions.
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15
This Globe cloud chart is in Spanish. View cloud formations and descriptions.
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16
Learn how to identify cloud types by using this flow chart from the International Cloud Atlas. Clouds are divided into 10 fundamental types known as genera, depending on their general form. The genera are then further subdivided based on a cloud's particular shape, structure and transparency; the...
Grade Level   K 1 2 3 4 5 6 7 8 9 10 11 12
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17
Ocean water is salty and, in general, cold. Differences in the water density associated with temperature and salinity are vital in shaping the Great Ocean Conveyor. This lesson plan demonstrates how salinity and temperature affect density of water.
Grade Level   7 8 9 10 11 12
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18
Barometers using mercury are heavy and fragile. The first working version of an aneroid (without water) barometer was built in 1843 by French scientist Lucien Vidie. This made the barometer very portable and it became a commonly used meteorological instrument. It was still calibrated to the...
Grade Level   9 10 11 12
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19
The amount of air over us is constantly changing. As a result, the weight of that air, called pressure, is constantly changing. These changes in air pressure are indications of changes in our weather. We measure this change using a device called a barometer (bar-meter or measurer).
Grade Level   9 10 11 12
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20
Pressure is not only a matter of altitude but also dependent upon the temperature. As the temperature increases so does the pressure. The molecules and atoms that comprise the air we breathe gain energy as they absorb heat. That increase in energy results in faster moving atoms which we observe as...
Grade Level   7 8 9 10 11 12
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