Vocabulary:

1. big bang
2. radiometric dating (or radioactive dating)
   
3. rotation
4. revolution (talking about the revolution on the earth)
   
5. climate
6. plate tectonics
7. Pangaea
8. Universe
   
9. galaxy 
10. billion
    

Read'a'long videos:

• section one 1,2
• section two 1,2
• section three

Power Point Reviews:

More information:

• The Big Bang video
• Calculating the age of the universe video
• 650 million years in 2 min video
• Physical Geography Fun Quizzes