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The Expanding Universe
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The Expanding Universe

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I can estimate how many stars and galaxies there are …

I can estimate how many stars and galaxies there are
I can explain what red shift is and what it shows

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Transcript

  • 1. The Expanding Universe
  • 2. Learning Outcomes • I can estimate how many stars and galaxies there are • I can explain what red shift is and what it shows
  • 3. Starter • What is a star? • What is a galaxy? • How many stars in a galaxy?? • How many galaxies in a universe???
  • 4. ??? • How do we know what the stars are made of? • What is red shift? • What is the Doppler Effect?
  • 5. Hydrogen