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