1
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.
Grade Level   K 1 2 3 4 5 6 7 8 9 10 11 12
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2
By TED-Ed
Published in 2013
Fresh water accounts for only 2.5% of Earth's water, yet it is vital for human civilization. What are our sources of fresh water? In the first of a two part series on fresh water, Christiana Z. Peppard breaks the numbers down and discusses who is using it and to what ends.
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3
By TED-Ed
"Energy is neither created nor destroyed -- and yet the global demand for it continues to increase. But where does energy come from, and where does it go? Joshua M. Sneiderman examines the many ways in which energy cycles through our planet, from the sun to our food chain to electricity and beyond....
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4
By TED-Ed
Published in 2016
North America didn't always have its familiar shape, nor its famed mountains, canyons, and plains: all of that was once contained in an unrecognizable mass, buried deep in Rodinia, a huge supercontinent that lay on the surface of the Earth. Peter J. Haproff explains how it took millions of years and...
Grade Level   6 7 8 9 10 11 12
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5
By TED-Ed
Published in 2014
"In 1816, Europe and North America were plagued by heavy rains, odd-colored snow, famines, strange fogs and very cold weather well into June. Though many people believed it to be the apocalypse, this """"year without a summer"""" was actually the result of a supervolcano eruption that happened one...
Grade Level   3 4 5 6 7 8 9 10 11 12
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6
By TED-Ed
Published in 2017
In 1995, scientists pointed the Hubble Telescope at an area of the sky near the Big Dipper. The location was apparently empty, and the whole endeavor was risky -- what, if anything, was going to show up? But what came back was nothing short of spectacular: an image of over 1,500 galaxies glimmering...
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