Plate Tectonics

2. The _______ (crust and asthenosphere) is cracked and divided into tectonic plates.
4. Two plates that slide past each other
6. Tectonic plates have different size, ____, and thickness
11. A break in a body of rock along which one block slides relative to another.
13. Process where new oceanic lithosphere forms as magma rises toward the surface and hardens
14. Which boundary moves in this direction ← →
16. Earth's _____ is broken into about 19 pieces.
17. The flow that transfers heat within a fluid
18. Continents used to look like a giant _____ ____.
20. PT.1 Tectonic plates move around Earth's surface at rates of ______

1. Formed by the collision of two lithospheric plates, EX: Himalaya Mountains
3. A more dense oceanic plate slides under a less dense continental plate
5. The bending of rock layers due to stress.
7. Who discovered the theory of continental drfit
8. 300 million years ago all of the continents were combined into one super-continent called _____
9. Submerged mountain range extended from the Arctic Ocean to beyond the southern tip of Africa. One of the better known Divergent Boundaries
10. Vibrations created by an earthquake.
12. Zones of geologic activity at the surface of Earth
15. PT.2 and _______ per year.
19. The core is made up of mostly ____