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