Making a Cosmic Calendar


  1. Predict when, on a one-year calendar, each event would occur. (1 pt. each)
  2. Working with others, use the Internet to determine the approximate times ago the events happened. Use reputable sources (NOT Wikipedias) and look for independent confirmation. (1 pt. each)
  3. As a group, calculate the placement of each event on a one-year calendar. If more than one event happens during one model “day,” calculate and include the time. (1 pt. each)
  4. Individually mark the events and dates on your calendar. (2 pt. each)
  5. Individually, write a short report on the reverse side of this paper. Neatness counts. (25 pts.)

  If “now” is 11:59:59 p.m. December 31, 2016

(Month and day)
How many years ago?
Calculated Date
on the Cosmic Calendar
1. Big Bang Jan. 1 at 12:00:01 a.m. 13.82 billion Jan. 1 at 12:00:01 a.m.
2. first hydrogen atoms form      
3. first stars form      
4. first globular clusters form      
5. first galaxies form      
6. our Sun begins fusing hydrogen      
7. the Earth forms      
8. the Moon forms      
9. life appears on Earth      
10. dinosaurs appear      
11. dinosaurs disappear      
12.  light we see today      
     left the Andromeda Galaxy      
13. first Homo Sapiens      
14. light we see today left      
       Sag A*      
15. first man on the Moon      
16. your birth      
17. right now Dec. 31 at 11:59:59 p.m. 0 seconds Dec. 31 at 11:59:59 p.m.

Create a 75 to 100-word description of what you learned about the history of the universe in this activity. Write at least two paragraphs, and include 1) how you determined a website was trustworthy, 2) how close or how off your predictions were, 3) a specific event or two that surprised you with their placement on the model calendar, and 4) your thoughts about the history of the universe as a whole.

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