Processes that shape the Earth

3. A rigid layer made up of the uppermost part of the mantle and the crust.
6. A description of surface features of land.
7. One plate going under another plate
8. the difference in elevation from one contour line to the next
10. the difference in elevation between the highest and lowest parts of an area
16. The soft layer of the mantle on which the lithosphere floats.
18. Process in which sediment is laid down in new locations.
20. A hypothesis that has been tested with a significant amount of data
21. The process in which rock is broken down by changes in its chemical makeup
22. supercontinent
23. on a map, a darker, heavier contour line that is usually every fifth line and that indicates a change in elevation

1. The theory that pieces of Earth's lithosphere are in constant motion, driven by convection currents in the mantle.
2. A map that shows the surface features of an area.
4. A line on a topographic map that connects points of equal elevation
5. A plate boundary where two plates move past each other in opposite directions
9. The breaking down of rocks and other materials on the Earth's surface.
11. A plate boundary where two plates move away from each other.
12. a piece of the lithosphere that moves around on top of the asthenosphere
13. Processes by which rock, sand, and soil are broken down and carried away (i.e. weathering, glaciation)
14. A plate boundary where two plates move toward each other.
15. the formation of new areas of oceanic crust, which occurs through the upwelling of magma at midocean ridges and its subsequent outward movement on either side.
17. Any process that breaks rock down into smaller pieces without changing the chemistry of the rock; typically wind and water.
19. The hypothesis that states that the continents once formed a single landmass, broke up, and drifted to their present locations