Download Assessment language for COS page…

Name: __________________________________ Period: _____ Date: _____________________
Internet Scavenger Hunt: Big Bang
Scientific Theories (and Hypothesis and Laws)
 http://www.livescience.com/21491-what-is-a-scientific-theory-definition-oftheory.html
1. Define: Scientific Theory
2. True or false…explain your answer. “Theory” means the same to a scientists as to
a regular person?
3. What’s the difference between facts and theories?
4. What are things a Scientific Theory must include to be good? (2 are mentioned)
(click on What is a Scientific Hypothesis)
5. Besides just saying “educated guess”, what is a scientific hypothesis (3 are
things are mentioned)
6. What is the “primary trait” of a scientific hypothesis?
(click on What is a Law in Science)
7. What is a scientific law?
8. What do Laws and Theories have in common?
9. True or false (Explain): Theories become laws after enough data has been
accumulated.
How the Big Bang Theory Developed

http://www.timetoast.com/timelines/101764
(click on specific dots to see times and events in the development of the
Big Bang theory)
10. What contributions did Albert Einstein make and when?
11. What contributions did Georges Lemaitre make and when?
12. What contributions did Edwin Hubble make and when?
13. What is CMB? When was it predicted? When was it discovered and by whom?
14. Who named the theory and when?
15. What are some more recent developments to BBT?
The Big Bang Theory:
 http://www.umich.edu/~gs265/bigbang.htm
 http://www.pbs.org/wnet/hawking/universes/html/bang.html
About 16. ______ billion years ago a tremendous explosion started the expansion of
the universe. This explosion is known as the Big Bang. At the point of this
event all of the matter and energy of space was contained
17. ___________________________________. What existed prior to this event is
completely 18. _________________________ and is a matter of pure
19. __________________. This occurrence was not a conventional explosion but
rather an event filling all of space with all of the particles of the embryonic
universe rushing away from each other. The Big Bang actually consisted of an
explosion of 20. ___________________________________________ unlike an
explosion of a bomb were fragments are thrown outward. The galaxies were not
all clumped together, but rather the Big Bang lay the foundations for the
universe.
21. Who originated (came up with) this theory and based on what observations?
22. How did cosmic background radiation play a role in this theory?
23. What three reasons exist for believing in the Big-Bang theory?
Timeline of the Big Bang:
 http://ssscott.tripod.com/BigBang.html (no longer online, but a copy is on
Schoolpointe)
 http://patrickgrant.com/BBTL.htm
24. The universe started as a small, atomic nucleus known as the
25. What happened at 10-43 seconds after the big bang event?
26. What happened during the Inflationary Epoch? How long did it last?
27. What happened after 3 minutes? What was the temp then?
28. What was happening up to 300,000 years after the initial bang (several things)?
What was the temp?
29. When/how did stars and galaxies form?
30. When/how did our Sun form?
31. Supernova 1987A exploded when? And when did the light reach earth?
32. By when will all stars be gone?
33. When will there just be black holes left? What happens after that?
Refinements to the Big Bang Theory:
 http://www.pbs.org/wnet/hawking/universes/html/fried.html
34. What is the Big Crunch?
35. What is the difference between a closed universe and an open universe?
Different versions of the Big Bang:
 http://www.pbs.org/wnet/hawking/universes/html/osci.html
36. What is one implication of the Big-Bang theory?
37. How is an oscillating universe like an idea of a universe
without end?

http://archive.ncsa.uiuc.edu/Cyberia/Cosmos/Cosmi
cMysteryTour.html
Here are some diagrams that break the history of the universe
into times and show how big the universe was at that time.
In the beginning
38. How did the name “Big Bang” get coined?
39. Was the Big Bang really an explosion? Explain.
40. What do we know about before 10
-43
seconds?
41. What happened to the temperature as the universe rapidly expanded?
Quark soup
42. At 10-12 seconds, the four forces finished separating. Gravity is one of those
forces. What are the other three?
43. The universe acts like there’s more matter out there we can’t see. It’s called dark
matter. What source might there be from this time for dark matter?
Big Freeze Out
44. What is the “Era of Nucleosynthesis?” What happened, when was it and how
long did it last?
45. Where did the other elements we know of come from?
Parting Company
46. During this time, pieces of atoms (protons and atomic nuclei) were bounced
around by light (photons). How long did this last?
47. At the end of this recombination, the temperature had dropped to 3000K and
left a “signature.” What is that signature?
Galaxy Birth
48. How did galaxies form and when were the first ones born?
49. What is a quasar and why are they useful?
Today’s Universe
50. What are some limitations (unanswered questions) of the Big Bang Theory?
Other sites:
Foundations of the theory, observational tests and limitations:
http://map.gsfc.nasa.gov/m_uni.html
Proof:
http://www.damtp.cam.ac.uk/user/gr/public/bb_pillars.html
Unanswered questions:
http://www.damtp.cam.ac.uk/user/gr/public/bb_problems.html
these are particularly good…look at for next year…
Not bad…pretty simple.
http://cosmology.berkeley.edu/Education/IUP/Big_Bang_Primer.html
and some about theories and laws…
http://www.carlton.srsd119.ca/chemical/Proof/default.htm
http://www.wilstar.com/theories.htm
http://chandra.harvard.edu/chronicle/0708/theo/
evolution, specifically…. http://www.evolution.mbdojo.com/theory.html
http://www.notjustatheory.com/