Across
- 4. a sheet of glacial ice that covers an immense area of flat land is a _______ glacier
- 5. a spire-like mass of dripstone on the floor of a cave
- 8. type of narrow, curved rock formation forms when a sea cave is continually eroded is a sea _____
- 11. suspension, saltation, and creep, in which wind transports sediments are _______ processes
- 13. the fan-shaped deposit left by a large river when it reaches the ocean
- 16. type of landslide involves fine soil and small pebbles falling in large masses down a slope is an _____ slide
- 17. the type of weathering that occurs when a plant's roots slowly thicken in a rock, causing the rock to crack
- 18. the type of natural acid that is found in rainwater and groundwater, promotes chemical weathering of rocks
- 21. a huge bowl-shaped depression dug out by a valley glacier
- 24. large, deep grooves and scratches in rock produced by glaciers
- 26. the stripping away of a thin area of topsoil from the surface of land is _____ erosion
- 27. the limestone formations that have become filled with various passageways and large caves
- 28. type of weathering occurs when rainwater soaks into cracks in a rock and freezes, splitting the rock is ice _______
- 30. process occurs when oxygen from the atmosphere reacts with minerals like calcium, magnesium, and iron to form new compounds
- 31. region of land drained by a stream or drainage system is the drainage _____
- 32. the type of dune is arch shaped, with the open end of the arch pointing to the windward side
- 33. a natural ridge formed along the edge of a river's channel
- 35. a sudden slide of huge masses of rock or soil down a slope
- 36. the sharp, steeple-shaped point of a mountain with three or more cirques
- 38. the triangular sediment deposit formed on a plain by a temporary mountain stream is ________ fan
- 39. particles too heavy to be lifted by the wind are rolled in short bursts through this process
- 40. ice sheets smaller that continental glaciers are ice ____
- 43. the piles of debris left behind when a glacier melts
- 46. the name for the time where one-third of the earth's land area was covered in glaciers was the ___ Age
- 47. type of weathering involving the breaking or peeling away of rock into layers
- 48. large, icicle-like masses of calcium carbonate found in caves
Down
- 1. large funnel-shaped depression caused by cavern collapse
- 2. the stripping away of topsoil by excess water travelling downhill
- 3. the main agent of chemical weathering
- 6. the material carried away by a stream
- 7. the natural process that break down rocks
- 9. the eroding action of windblown sand
- 10. describes a huge hole left in the gorund when an ice chunk left by a retreating glacier melts
- 12. the source of a river
- 14. one of the numerous streams that feed into a river at various points
- 15. a large stream that carries water from the mountains to the sea
- 19. the name for a vertical face of rock that forms when the sea removes rock from the base of a high ridge is a sea _____
- 20. the general term for the downslope movements of rock, soil, volcanic ash, snow or ice is mass ________
- 22. the winding looping curves of rivers
- 23. regions of the earth's surface where limestone is exposed and abundant
- 25. process in which wind and running water carry away broken fragments of rock
- 29. the system consists of a relatively large stream and any smaller streams that flow into it
- 31. a long pile of rocks deposited parallel to the shore to prevent erosion
- 34. the drainage divide in the Rocky Mountains west of the Mississippi River drainage basin is the _____ Divide
- 37. the process of modifying a smooth slope into a series of level, stair like steps
- 41. a low hill formed when a glacier overruns a moraine
- 42. as a dune forms this side usually has a gentle slope that progresses up to the crest
- 44. a glacier-carved valley that has filled with seawater
- 45. lake formed when a sharp curve in a river is cut off from the rest of the river