Geologic History

2. The outer layer of the earth.
5. The separation of Pangea is due to this.
6. This era marked the beginning of the break up of Pangaea. (2 words)
7. The relatively hard, solid rock beneath surface materials.
9. Continuous wearing down of land and rocks due to wind, rain and water.
10. A time in history when the earth was covered in ice.
11. The process caused by the buckling of the earth due to tremendous pressure
13. Huge masses of ice.
14. The impression left in hardened rock of a plant or animal.

1. The name of the supercontinent dating back two million years.
3. A conclusion resulting from the use of reason and observation.
4. A theory that claims the earth is made up of 20 plates.
5. A heated fluid rises and carries heat with it. This is also a setting on ovens.
8. Earth's history is divided into 4 time periods known as ___.
12. An action in which the earth cracks open.