crossword puzzle

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Across
  1. 3. a body of water surrounded by water
  2. 4. a large, level area of grassland with few or no trees
  3. 6. level of the oceans surface used as a reference point when measuring the height or the depth of the earths surface
  4. 8. a large ice mass that moves
  5. 10. broadleaf trees
  6. 12. natural elevation of earths surface
  7. 15. level at which the rock is saturated
  8. 16. a fracture in the earths surface
  9. 18. the place where a river flows into a lake or an ocean
  10. 19. subsoil is constantly frozen
  11. 20. water held in the pores of rock
  12. 21. a triangular area of land formed from deposits at the mouth of a river
  13. 23. a wide flat topped mountain
  14. 25. nedleleaf trees
  15. 27. also known as hurricane
  16. 28. plates collide
  17. 31. independent community of plants and animals
  18. 32. a narrow channel connecting two larger bodies of water
  19. 35. plates moving apart
  20. 40. an area drained by a major river and its tributaries
  21. 43. soft, wet, low-lying, grassy land that serves as a transition between water and land
  22. 44. physical and chemical processes that change the characteristics of rock on or near the earths
  23. 45. the days and nights are all equal
  24. 46. plates slide past each other
  25. 48. alwo known as typhoon
  26. 49. can detect earthquakes
  27. 50. a zone surrounded by active volcanoes
  28. 53. the earths surface from the edge of a continent to the deep part of the ocean
  29. 54. the combination of the surface shape and composition of the landforms and their distribution in a region
  30. 55. an opening in the earth, usually raised, through which gasses and lava escape from the earth interior
  31. 58. a heavy snowstorm
  32. 59. the steep almost vertical edge of a hill, mountain, or plain
  33. 60. weathered material is moved by the action of wind, water, ice, or gravity
Down
  1. 1. a broad flat area of land higher than the surrounding land
  2. 2. the point directly above the focus on the earths surface
  3. 5. a raised, flat area of land with steep cliffs smaller than a mesa
  4. 7. enormous moving pieces of the earths lithosphere
  5. 9. naturally formed features on the surface of the earth
  6. 11. a long period of time without water
  7. 13. the cycle of water also known as the water cycle.
  8. 14. a sheltered area of water deep enough for docking ships
  9. 17. the condition of the atmosphere at a particular location and time
  10. 22. a twister, a powerful funnel shaped column of spiraling air
  11. 24. a wide treeless grassy plain
  12. 26. smaller pieces of rock caused by weathering
  13. 28. when rock is changed in a new substance
  14. 29. part of an ocean or lake partially enclosed by land
  15. 30. a lowland region that is saturated by water
  16. 33. the flat treeless lands forming a ring around the artic ocean
  17. 34. mostly treeless plains
  18. 36. ecosystem of a region
  19. 37. a narrow deep valley with steep sides
  20. 38. when plates move past each other the earth trembles or shakes
  21. 39. a spot of fertile land in a desert, fed by water from wells or underground springs
  22. 41. lowland between hills or mountains
  23. 42. the transfer of air
  24. 47. is the difference in the elevation of landform from its lowest point to its highest point
  25. 51. located in the tropical zone
  26. 52. flat land near the edges of rivers formed by mud and silt deposited by floods
  27. 53. a step like series of waterfalls
  28. 56. a point of land extending into an ocean or lake
  29. 57. the amount of air and water in the soil