Plate Motion

3. the sideways and downward movement of the edge of a plate of the earth's crust into the mantle beneath another plate
6. hot liquid rock on the surface of earth
8. earth's interior between the crust and the core innermost portion of the Earth
10. the rigid outer part of the earth one of the 4 rocky planets that has biosphere
11. rigid pieces of the earth's lithosphere which together make up the earth's surface
14. the outside or top layer of something
15. any of Earth’s main continuous areas of land
16. a feature that forms on the surface of a planet
18. a diagram that shows what the inside of something looks like
19. the sudden pushing out of something

1. evidence of life from the past
2. tectonic boundary where two plates are moving toward each other
4. a scientific theory that explains how major landforms are created as a result of Earth's movements
5. Earth’s outermost layer of hard, solid rock that is underneath soil and water
7. a sudden shaking of Earth’s surface
9. occurs when two tectonic plates move away from each other
12. the upper layer of the earth's mantle, below the lithosphere
13. any of the many processes in which gas, lava, and ash are pushed out onto the surface of the Earth
15. the movement of continents resulting from the motion of tectonic plates
17. hot liquid rock below the surface of Earth
20. very large expanse of sea