1
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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2
By TED-Ed
Published in 2015
Our planet’s diverse, thriving ecosystems may seem like permanent fixtures, but they’re actually vulnerable to collapse. Jungles can become deserts, and reefs can become lifeless rocks. What makes one ecosystem strong and another weak in the face of change? Kim Preshoff details why the answer,...
Grade Level   K 1 2 3 4 5 6 7 8 9 10 11 12
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