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What Was the Young Earth Like? (11:09)

Key Ideas

As this video progresses, key ideas will be introduced to invoke discussion.

Key Ideas

Think about the following questions as you watch the video

  1. 01:08 What challenges would humans have faced if they lived on the early Earth?
  2. 07:59 When and how did an explanation for the movement of the Earth’s plates come together?
  3. 08:57 How does continental crust differ from oceanic crust?
  4. 09:37 How were the Andes and Himalayas formed?
  5. 10:59 What is plate tectonics?
  6. 02:23 Why was the early Earth so hot?
  7. 03:57 Why is it important that the inner core of the Earth is metal?
  8. 04:18 How is the mantle different from the core of the Earth?
  9. 04:40 How is the crust different from the mantle?
  10. 04:47 How did the Earth’s atmosphere form?
  11. 06:18 What important hypothesis did Alfred Wegener make about the Earth, and what was his evidence?
  12. 06:33 What was this supercontinent called?
  13. 07:04 Why were many scientists unwilling to accept Wegener’s hypothesis?