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Earth's Layers and Continental Drift Study Guide
NAME:________________________
Due date:9/7 Test date:9/8_
Important and Key words:
Crust
Asthenosphere Continental Drift
Pangaea
Plate Boundary
Divergent
Convection Current
Mantle
Mid-Ocean Ridge
Core
Rift Valley
Convergent
Plate Tectonics
Transform
1. The three main layers that make up Earth are the C____________, the M_____________ and the C____________.
2. Label the core, the mantle and the crust on the diagram below.
3. The L_______________ is made up of the C_______________ and the upper part of the M_______________.
4. The hot softer part of M___________ that the L_______________ sits on top of is called the A_______________.
5. Materials that are L__________ D_______________ rise to Earth’s surface.
6. Materials that are M__________ D_______________ sink toward Earth’s center.
7. Earth’s core has two parts, the I__________ C__________ and the O__________ C___________.
8. The O__________ C___________ is L_______________ rock and the I__________ C__________ is
S__________ because of the immense amount of pressure that it is under.
9. A C_______________ C_______________ occurs when hot rock in the mantle R__________ toward the crust,
C__________ and then F__________ in a continuous motion.
10. At a D_______________ B_______________ plates move A_______________ from one another.
11. At a C_______________ B_______________ plates move T_______________ one another.
12. At a T_______________ B_______________ plates S_______________ past one another.
13. Because stress builds up over time, E____________________ tend to happen at plate boundaries.
-----------------------------------------------------Finish the following while STUDYING for the test tonight
14. What was Alfred Wegener’s hypothesis called? _________________________
15. Describe Wegener’s hypothesis.
16. What were the three pieces of evidence that supported his theory?
I.
II.
III.
17. Describe how the following terms fit together.
Crust, Convection Current, Mantle, Mid-Ocean Ridge, Pangaea, Divergent Boundary, Rift Valley. Tectonics Plates
18. What does the term subduction mean?
19. What type of boundary are mountains usually formed at, and describe why they are formed?
20. Return to class with this study guide finished by 9/7
21. Have a parent sign in the space to the right.