Earth Science

3. The accuulation or laying down of matter by a natural processm, as the laying down of sediments in a river
4. A relatively lightweight igneous rock that makes up most of the Earth's continental crust
5. The process by which collision of the Earth's crustal plates results in one plate's being drawn down or overridden by another
6. To move or cause to move towards the same point
7. An underwater mountain range that is created when two plates diverge or pull away from each other
8. Rock altered by pressure and heat
9. The breaking down of rock from water, wind, and human destruction
11. The moving away of rocks and other deposits on the Earth's surface by the action of water, ice, wind
12. A deep ditch made when two plates collide and one subducts under the other
15. An arc-shaped chain of islands indicating volcanic activity where the oceanic lithosphere is descending into the Earth's interior

1. Rock formed by the solidification of molten magma
2. To move, lie, or extend in different directions from a common point
6. The breaking down of rick by chemically changing what the rock is made up of
10. Rock formed from consolidated (a mix) clay sediments
13. A hard, dense, igneous rock that makes up the oceanic crust in the Earth's plates
14. A break in the Earth's crust caused by stresses related to plate movement