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Unit 4 Overview: Our Solar System & Earth

Unit 4 Overview: Our Solar System & Earth (7:48)

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. 02:22 What theory did meteorologist Alfred Wegener propose and how did most geologists react to this theory?
  2. 03:06 What led to the acceptance of the theory of plate tectonics?
  3. 04:05 What types of evidence did earlier scholars discover that contributed to collective learning and the eventual acceptance of plate tectonics?
  4. 05:55 What are the ingredients and Goldilocks Conditions for Threshold 4—the creation of our Solar System and Earth?
  5. 06:26 What was the Hadean Eon?
  6. 06:49 How are we all lava surfers?