The Big Bang Theory

By: Madie Jensen

What is a Theory?

  • explanation of opinion
  • evidence
  • testable
  • cannot be proven

What is the Big Bang Theory?

  • explanation
  • cannot be proven
  • condensed ball of energy
  • rapid expansion


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The Cosmological Principle:

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How does the Big Bang Theory affect the stars in our galaxy?

Hypothesis: If the big bang theory created the stars in our galaxy, then stars in our galaxy were created when the big bang theory happened.


  • hydrogen and helium
  • gas clouds clump
  • explode into supernova
  • 300 billion stars in our galaxy
  • 100 billion galaxies in universe