Across
- 2. the process of a new seafloor forming when magma rises to Earth's surface at mid-ocean ridges and solidifies
- 4. a movement or trembling of the ground that is caused by a sudden release of energy when rocks along a fault move
- 5. a wave of energy that travels through the Earth and away from an earthquake in all directions
- 6. the movement of continents
- 8. the thin and solid outermost layer of Earth above the mantle
- 12. The process of one lithospheric plate moves beneath another plate as a result of plate tectonics
- 17. the boundary between tectonic plates that are colliding
- 18. the edge between two or more plates classified as divergent, convergent, or transform by the movement taking place between the plates
- 20. the point on Earth's surface directly above an earthquake's starting point or focus
- 21. the central part of Earth below the mantle
- 22. the layer of rock between the Earth's crust and core
Down
- 1. a break in a body of rock along which one block moves relative to another
- 3. the theory that explains how tectonic plates move and change shape
- 7. the boundary between tectonic plates that are sliding past each other horizontally
- 9. the location within Earth along a fault at which the first motion of an earthquake occurs
- 10. the solid outer layer of Earth that consists of the crust and the rigid upper part of the mantle
- 11. a change in the direction in which Earth's magnetic field points
- 13. any movement of matter that results from differences in density
- 14. the soft layer of the mantle on which the tectonic plates move
- 15. the boundary between two tectonic plates that are moving away from each other
- 16. the stronger and lower part of the mantle between the asthenosphere and the outer core
- 19. a block of lithosphere that consists of the crust and the rigid outermost part of the mantle