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