science 2

4. The location within earth along a fault at which the first motion of an earthquake occurs
5. The process by which new oceanic lithosphere (sea floor) form when magma rises the earth's surface at mid-ocean ridges and solidifies as older existing seafloor moves away from ridge.
8. The boundary between tectonic plates that are colliding
10. The central part of earth below the mantle
14. A break in a body of a rock along which one block moves relative to another
18. The solid outer layer of earth that consists of the crust and the rigid upper part of the mantle
19. 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.
21. A movement or trembling of the ground that is cause by a sudden release of energy when rocks along a fault move.
22. The layer of rock between the earth’s crust and core
23. A block of lithosphere that consists of the crust and the rigid outermost part of the mantle
24. The thin and solid outermost layer of earth above the mantle
25. The edge between two or more plates classified as divergent convergent or transform by the movement taking place between the plates
26. the soft layer of the mantle on which the tectonic plates move

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 bending tilting and breaking of earth crust the change in the shape of rock in response to stress
6. The boundary between tectonic plates that are sliding
7. The point of earth's surface directly above an earthquake starting point or focus
9. The strong lower part of the mantle between the asthenosphere and the outer core
11. The sudden return of elastically deformed rock to it undeformed shape
12. The process by which one lithospheric plate moves beneath another plates as a result of tectonic forces
13. Any movement of matter that results from difference in density may be vertical, circular, or cyclical
15. A system of ideas that explains many related observations and is supported by a large body of evidence acquired through scientific investigation
16. the theory that earth outer layer is made up off 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.
17. reversal
20. 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