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Unit 4 Overview: Our Solar System & Earth

Unit 4 Overview: Our Solar System & Earth

How did the pale blue dot we all live on form? Hint: It has a lot to do with the Universe getting more complex.

Key Ideas

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

Think about the following questions as you watch the video


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