shaping earths surface

3. break in earths crust along which movement occurs
5. a crater on a planet or satellite caused by the impact of a meteorite
7. a volcano built up of alternate layers of lava and ash.
9. an area which is dominated by volcanoes, created by volcanic activity, and shaped by volcanic activity over time.
13. When two plates come together
14. the geological process in which earthen materials are worn away and transported by natural forces such as wind or water.
16. rapid downhill movemet of soil loose rocks and boulders.
18. mountain formed from two or more of Earth's tectonic plates are pushed together
19. the breaking down or dissolving of rocks and minerals on Earths surface

1. an area on Earth over a mantle plume or an area under the rocky outer layer of Earth, called the crust, where magma is hotter than surrounding magma
2. any of the world's main continuous expanses of land
3. mountains formed by the movement of large crustal blocks along faults formed when tensional forces pull apart the crust
4. an area of many fractured pieces of crust along a large fault line
6. process in which the nazca plate is forced under the south american plate
8. openings, or vents where lava, tephra (small rocks), and steam erupt onto the Earth's surface
10. when two tectonic plates move away from each other
11. curved line of volcanoes located in the united states
12. a broad zone forming as the Pacific Plate slides northwestward past the North American Plate.
15. a large wave which forms when an ocean disturbance suddenly moves a large volume of water
17. rupture or sudden movement of rocks along a break in earths crust