When to use apostrophes – Laura McClure
View full lesson: http://ed.ted.com/lessons/when-to-use-apostrophes-laura-mcclure It’s possessive. It’s often followed by S’s. And i...
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When will the next mass extinction occur? – Borths, D’Emic, and Pritchard
View full lesson: http://ed.ted.com/lessons/when-will-the-next-mass-extinction-occur-borths-d-emic-and-pritchard About 66 million ye...
Where did Earth’s water come from? – Zachary Metz
View full lesson: http://ed.ted.com/lessons/where-did-earth-s-water-come-from-zachary-metz Water covers over 70% of the Earth, cycli...
Where did English come from? – Claire Bowern
View full lesson: http://ed.ted.com/lessons/where-did-english-come-from-claire-bowern When we talk about ‘English’, we often think o...
Where did Russia come from? – Alex Gendler
View full lesson: http://ed.ted.com/lessons/where-did-russia-come-from-alex-gendler Russia is the biggest country in the world, span...
Where do genes come from? – Carl Zimmer
View full lesson: http://ed.ted.com/lessons/where-do-genes-come-from-carl-zimmer When life emerged on Earth about 4 billion years ag...
Where do math symbols come from? – John David Walters
Sign up for our newsletter here: https://ed.ted.com/newsletter View full lesson: https://ed.ted.com/lessons/where-do-math-symbols-co...
Where do new words come from? – Marcel Danesi
Check out the Mysteries of Vernacular series: https://ed.ted.com/mysteries-of-vernacular View full lesson: https://ed.ted.com/lesson...
Where do superstitions come from? – Stuart Vyse
View full lesson: http://ed.ted.com/lessons/where-do-superstitions-come-from-stuart-vyse Are you afraid of black cats? Would you ope...
Where does gold come from? – David Lunney
View full lesson: http://ed.ted.com/lessons/where-does-gold-come-from-david-lunney Did you know that gold is extraterrestrial? Inste...