Plate Tectonics

2. a synclinal fold
5. the layer of the atmosphere between the stratosphere and the thermosphere and in which temperature decreases as altitude increases
7. a monoclinal structure or fold
8. the thin and solid outermost layer of Earth above the mantle
9. the supercontinent that formed 300 million years ago and that began to break up 250 million years ago
11. the boundary between tectonic plates that are colliding
14. the boundary between two tectonic plates that are moving away from each other
16. the soft layer of the mantle on which the tectonic plates move
17. the central part of Earth below the mantle
18. rising of regions of the Earth's crust to higher elevations

1. the boundary between tectonic plates that are sliding past each other horizontally
3. the central part of Earth below the mantle
4. the layer of rock between the Earth's crust and core
6. stress that occurs when forces act to stretch an object
9. the theory that explains how large pieces of Earth's outermost layer, called tectonic plates, move and change shape
10. stress that occurs when forces act to squeeze an object
12. a block of lithosphere that consists of the crust and the rigid, outermost part of the mantle
13. the bending of rock layers due to stress
15. an anticlinal rock structure
19. a break in a body of rock along which one block slides relative to another