Big Bang Webquest - Mrs. Gekiere's Classroom



Big Bang Webquest Name:__________________

Beginning URL:

Questions:

Part 1: Expansion of the Universe

1. Why did Einstein develop the “cosmological constant”?

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2. Which theory was the natural beginning of The Big Bang theory? ________________________ ________________________

3. Who showed that the universe was indeed expanding?________________________

4. According to the expansion law do the galaxies expand away from each other equally? Explain.______________________________________________________________

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Part 2: The Abundance of Light Elements

5. What is nucleosynthesis? ____________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________

6. What is Big Bang nucleosynthesis?

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7. What was the universe like immediately after the Big Bang started?______________

8. How much of the universe’s ordinary matter is thought to be helium? Does Big Bang theory support this number?

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9. What is WMAP?____________________________________________________________________

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10. Where do elements heavier than lithium come from?

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11. Where do elements heavier than iron come from?

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Part 3: Cosmic Microwave Background Radiation

12. What is CMB? Explain. ________________________________________________________________________________________________________________________________________________________________________

13. Who predicted the existence of CMB?______________________________

14. Who discovered CMB?____________________________________________________________

15. Describe the CMB as it exists today. _____________________________________________________________________________________________________________________________________________________________________________________________________________________________________________

16. How old is the universe thought to be?_________________________________

17. What did the FIRAS experiment show?

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18. What event was thought to occur about 400,000 years after the Big Bang?

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19. What is the most striking characteristic of the CMB?_______________________________

20. The article mentions cosmology and cosmologists over and over again. What is cosmology? ___________________________________________________________________

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