Across
- 5. plate A block of lithosphere that consists of the crust and the rigid, outermost part of the mantle.
- 6. The location within earth along a fault at which the first motion of and earthquake occurs.
- 8. drift The hypothesis that a single large landmass broke up into smaller land masses to form the continents, which then drifted to their present locations
- 10. reversal The process by which earth's magnetic north pole magnetic south pole switch positions periodically, a change in the direction in which earth's magnetic field points.
- 13. The point on earth's surface directly above an earthquake's starting point, or focus.
- 14. The solid, outer layer of earth that consist of the crust and the rigid upper part of the mantle
- 15. tectonics The theory that earth's outer layer is made up of large, moving pieces called tectonic plates, the theory explains how plates interactions relate to processes such as earthquakes and mountain building
- 18. A movement or trembling of the ground that is caused by a sudden release of energy when rocks along a fault move.
- 19. spreading The process by which new oceanic lithosphere
- 20. The theory that earth's outer layer is made up of large, moving pieces called tectonic plates, the theory explains how plates interactions relate to processes such as earthquakes and mountain building
- 22. current Any movement of matter that results from differences in density, may be vertical, circular, or cyclical.
- 24. The layer of rock between the earth's crust and core
Down
- 1. boundary The boundary between tectonic plates are colliding.
- 2. boundary The boundary between tectonic plates that are moving away from each other.
- 3. rebound The sudden return elastically deformed rock to is undeformed shape
- 4. plate boundary The edge between two or more plates classified as divergent, convergent, or transform by the movement taking place between the plates.
- 7. plate boundary The edge between two or more plates classified as divergent, convergent, or transform by the movement taking place between the plates.
- 9. The soft layer of the mantle on which the tectonic plates move
- 11. The bending, tilting, and breaking of earth's crust, the change in the shape of rock in response to stress.
- 12. The thin and solid outermost layer of earth
- 16. The process by which one lithospheric plate moves beneath another plate as a result of tectonic forces.
- 17. boundary The boundary between tectonic plates that are sliding past each other horizontally.
- 21. The strong lower part of the mantle between the asthenosphere and the outer core
- 23. A break in a body of rock along which one block moves relative to another.