1
By TED-Ed
Published in 2014
In a fun, excited talk, teenager Henry Lin looks at something unexpected in the sky: galaxy clusters. By studying the properties of the unverse's largest pieces, says the Intel Science Fair Winner, we can learn quite a lot about our own world ad galaxy.
Grade Level   6 7 8 9 10 11 12
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2
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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3
By TED-Ed
Published in 2013
"In this short talk, TED Fellow Sarah Parcak introduces the field of """"space archeology"""" -- using satellite images to search for clues to the lost sites of past civilizations."
Grade Level   3 4 5 6 7 8 9 10 11 12
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4
By TED-Ed
Published in 2016
About 66 million years ago, a terrible extinction event wiped out the dinosaurs. But it wasn't the only event of this kind -- extinctions of various severity have ocurred throughout the Earth's history -- and are still happening all around us today. Borths, D'Emic, ad Pritchard give a quick history...
Grade Level   3 4 5 6 7 8 9 10 11 12
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5
By TED-Ed
Published in 2013
The Earth is 4.6 billion years old -- but how can humans relate to a number so colossal, and where do we fit on the geologic timeline? Comparing the Earth's lifetime to one calendar year, events like the extinction of dinosaurs and Columbus setting sail took place relatively recently. Joshua M....
Grade Level   6 7 8 9 10 11 12
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6
By TED-Ed
Published in 2013
The shape, contents and future of the universe are all intricately related. We know that it's mostly flat; we know that it's made up of baryonic matter (like stars and planets), but mostly dark matter and dark energy; and we know that it's expanding constantly, so that all stars will eventually burn...
Grade Level   9 10 11 12
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