Across
- 4. The process by which one lithospheric plate moves beneath another plate as a result of tectonic forces
- 7. The point on Earth’s surface directly above an earthquake’s starting point, or focus
- 8. The soft layer of the mantle on which the tectonic plates move
- 9. Any movement of matter that results differences in density; many be vertical
- 14. block of lithosphere that consists of the crust and the rigid, outermost part of the mantle
- 15. 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
- 19. The sudden return of elastically deformed rock to its undeformed shape
- 20. A break in a body of rock along which one block moves relative to another
- 21. 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; the movement of continents
- 23. The boundary between tectonic plates that are colliding
- 24. A break in a body of rock along which one block moves relative to another
Down
- 1. The boundary between two tectonic plates that are moving away from each other
- 2. The edge between two or more plates classified as divergent, convergent, or transform by the movement taking place between the plates
- 3. The solid, outer layer of Earth that consists of the crust and upper mantle
- 5. The boundary between tectonic plates that are sliding past each other horizontally
- 6. The change in the shape of rock in response to stress
- 7. Movement or trembling of the ground that is caused by a sudden release of energy when rocks along a fault move
- 10. 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
- 11. The thin and solid outermost layer of Earth above the mantle
- 12. The layer of rock between the Earth’s crust and core
- 13. 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
- 16. A block of lithosphere that consists of the crust and the rigid, outermost part of the mantle
- 17. A system of ideas that explains many related observations is supported by a large body of evidence acquired through scientific investigation
- 18. The strong, lower part of the mantle between the asthenosphere and the outer core
- 22. The central part of Earth below the mantle