plate tectonics

2. Ordered from largest in area to smallest, these seven regions are.
4. hot molten or semifluid rock erupted from a volcano or fissure, or solid rock resulting from cooling of this.
8. are formed by divergent plate boundaries. These zones, located along mid-ocean ridges, represent areas where up welling magma creates new oceanic crust.
11. the rigid outer part of the earth, consisting of the crust and upper mantle.
12. hot fluid or relative fluid material below or within the earth's crust from which lava and other igneous rock is formed on cooling.
13. Photographs and information for a large collection of igneous, metamorphic and sedimentary
14. rock, rock formed at or near Earth's surface by the accumulation and made of sediment
15. boundaries are the edges where two plates meet. Most geologic activities, including volcanoes, earthquakes, and mountain building, take place at plate boundaries.
16. boundaries where new crust is generated as the plates pull away from each other.

1. movements.
3. is a scientific theory that explains how major landforms are created as a result of Earth's
5. it erupts lava and magma out of it.
6. the upper layer of the earth's mantle, below the lithosphere, in which there is relatively low resistance to plastic flow and convection is thought to occur.
7. that contain characteristic pillow-shaped structures that are attributed to the extrusion of the lava underwater, or sub aqueous.
9. something moving the plates and making the crust move.
10. rocks arise from the transformation of existing rock to new types of rock, in a process called metamorphism.