Crossword Puzzle - Earth Processes

2. the envelope of gases surrounding the earth or another planet.
5. weathering causes rocks to crumble.
7. the study of the forms and features of land surfaces.
13. an area or ridge of land that separates water flowing to different rivers, basins, or seas.
14. the laying down of sediment carried by wind, flowing water, the sea, or ice.
16. part of the water cycle in which the water flows over the land as surface water.
17. the rigid outer parts of the earth (crust).
19. the underground layer of water bearing permeable rock.
20. the weather conditions prevailing in an area in general of over a long period.
21. the regions of the surface, atmosphere, and hydrosphere of the earth occupied by living organisms.

1. water water held underground in the soil or in pores and crevices in rock.
3. erosion movement of glacier ice over its bed.
4. any of the almost spherical concentrate regions of matter that makes up the earth and atmosphere.
6. the process of eroding or being eroded by wind, water, or other natural agents.
8. all the waters on earths surface.
9. the central or innermost portion of the earth.
10. is the mostly-solid bulk of earths surface.
11. horizon a layer parallel to the soil surface whose physical, chemical, and biological characteristics differ from the layers.
12. erosion a normal process that moves soil from one location to another by wind power.
15. the breaking down or dissolving of rocks and minerals.
18. erosion the detachment and removal of soil material by water.