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Crash Course: The Big Bang

Crash Course: The Big Bang (13:55)

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. 01:11 Why is the Big Bang a good start date for history?
  2. 03:05 What do different scales give you?
  3. 05:03 How old is the Universe?
  4. 06:04 How do we know that the Big Bang is the beginning?
  5. 08:35 What are the two simplest elements that were formed after the Big Bang?
  6. 09:43 What is cosmic background radiation (CBR)?
  7. 11:14 What is redshift?