Plate tectonicts

3. The rigid outer part of the earth, consisting of the crust and upper mantle, which is broken into tectonic plates.
6. The soft, ductile layer of the upper mantle on which the tectonic plates move.
8. Building: Occurs when continental plates collide and are uplifted.
11. Boundary: Where two plates move away from each other.
12. Spreading: Creates new oceanic crust at mid-ocean ridges as plates diverge.
14. Boundary: Where two plates move toward each other.

1. Boundary: Where two plates slide past each other horizontally.
2. Currents: The circular motion of the mantle's hot, less dense material rising and cooler, denser material sinking, which drives the movement of tectonic plates
4. plates (large slabs of the lithosphere that move on the asthenosphere)
5. Occurs when one plate sinks beneath another, often creating a trench and volcanic activity.
7. Valley: A valley formed on land when continental plates pull apart.
9. (the soft, pliable layer of the mantle)
10. (the rigid outer layer of the Earth)
13. Tectonics: The scientific theory that Earth's outer shell is divided into several plates that glide over the mantle.