Tectonic Plates

4. tectonics - the theory that earth's outer shell is divided into several plates.
9. - was a super continent.
10. Rock - formed by the deposition and subsequent cementation of material at the earth's surface.
14. Rock - formed through the coolin and solidification of magma or lava.
16. - point where an earthquake or underground explosion originates.

1. - part of the upper mantle just below the lithosphere.
2. Rock - transformation of pre-exiting rock
3. fossiling - any animal or plant preserved in the rock record of the earth.
5. Shelf - an underwater land mass which extends from a continent, resulting in an area relatively shallow.
6. - the measure of salts dissolved in water.
7. - mixture of molten pr semi-molteb rock. It is found beneath the surface of the earth.
8. Ridge - an underwater mountain range
11. - a measure of mass per volume.
12. Boundry - tectonic plates moving away from each other.
13. Boundary - where two or more tectonics plates collide with each other causing massive earth movements.
15. Crust - the upper most layer of the oceanic portion of a tectonic plate.