Big Bang Webquest - Neshaminy School District



Big Bang Webquest

Directions: Search the web to find the answers you are looking for.

Beginning URL:

Questions:

Part 1: Expansion of the Universe

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

2. Which theory was the natural beginning of a 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.

Part 2: The Abundance of Light Elements

5. What is nucleosynthesis?

6. What is Big Bang nucleosynthesis?

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?

9. What is WMAP?

10. Where do elements heavier than lithium come from?

11. Where do elements heavier than iron come from?

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?

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

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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