| Across |
| 1. | Underground porous and permeable rock holding ground water. |
| 2. | Steep-sided, flat-bottomed gully. |
| 8. | A valley area bordering a stream that is subject to flooding. |
| 10. | Result of precesses that loosen, dissolve, and remove earth. |
| 14. | The down slope movement of earth material due to gravity. |
| 18. | Vibrations within the Earth set off by earthquakes. |
| 19. | Rock layers that buckle under pressure. |
| 20. | Small conical hills of sediment. |
| 21. | Small lakes in the hollowed-out depressions. |
| 22. | Fan-shaped accumulation of alluvium. |
| 27. | Sharp ridges that seperate adjecent glacially carved valleys. |
| 28. | An embankment on the sides of a meandering river. |
| 30. | An arch of stratified rock; bend opposite from crest. |
| 31. | Seismic seawaves genarated by an earthquake. |
| 32. | Permanently frozen subsoil. |
| 33. | Steep sided cinder cone. |
| 34. | Fractures tha tare cracks. |
| 35. | The chemical change that occurs in chemical weathering. |
| 36. | Bowing of the earth's surface. |
| 37. | Steep slope formed by vertical movement of Earth. |
| 38. | A trough of stratified rock; downarched |
| 39. | Formation of a stalactite and stalagmite that join to one structure. |
| 40. | Deep surface depression. |