Across
- 3. a step-like series of waterfalls
- 6. flat, treeless lands forming a ring around the Artic Ocean, also a climate sub region
- 8. term for weather conditions at a particular location over a long period of time
- 12. naturally formed features on the surface of the earth
- 14. a broad, flat area of land higher than the surrounding land
- 15. steeper slopes which are eroded easily and do not produce soil quickly
- 16. organic material from the ground
- 18. long period of time without rain or with very minimal rainfall
- 19. earth's surface from the edge of a continent to the deep part of the ocean
- 22. natural elevation of the earth's surface with steep sides and greater height than a hill
- 23. heavy snowstorm with winds of more than 35mph.
- 24. plates collide, causing either one plate to dive under the other or the edges of both plates to crumple
- 25. land on leeward side that gets little ran from the descending dry air
- 27. chemical composition of the original rock
- 28. special device that detects earthquakes
- 30. area drained by a major river and its tributaries
- 31. located in the tropical zone and has heavy concentration of broadleaf trees
- 34. condition of atmosphere at a particular location and time
- 35. a triangular area of land formed from deposits at the mouth of a river
- 37. low land between hills or mountains
- 38. the day in which the tropic of Cancer and Capricorn and the suns rays shine directly overhead
- 39. other word for hurricanes
- 40. enormous moving pieces of the earth's lithosphere
- 42. windblown silt and clay sediment that produce very fertile soil
- 43. plates slide past one another
- 44. the combination of the surface shape and composition of the landforms and their distribution in a region
- 45. soft, wet. low-lying, grassy land that serves a transition between water and land
- 46. plates that move apart, spreading horizontally
- 48. during this time, days and nights all over the world are equal in length
- 49. water held in pores of rock
- 54. layer of gases released by the burning of coal and petroleum traps some solar energy, causing higher temperatures
- 60. zone around the rim of the pacific ocean with vast majority of active volcano
- 63. Needle leaf trees
- 65. when subsoil is permanently frozen
- 67. warming of the waters off the west coast of South America
- 68. a narrow, deep valley with steep sides
- 69. powerful funnel-shaped column of spiraling air
Down
- 1. magma that has reached the earth's surface
- 2. rocks left behind by a glacier that forms ridges or hills
- 3. process that breaks rock into smaller pieces and changes its composition
- 4. changing landforms by slowly moving glaciers
- 5. transfer of heat in the atmosphere by upward motion of the air
- 7. interdependent community of plants and animals
- 9. the steep, almost vertical edge of a hill, mountain, or plain
- 10. occurs when weathered material is moved by the action of wind, water, ice, or gravity.
- 11. storms that form over warm, tropical ocean waters
- 13. a narrow channel connecting two larger bodies of water
- 17. a wide, flat-topped mountain with steep sides, larger than butte
- 18. Broadleaf trees
- 20. the continuous circulation of water between the atmosphere, the oceans, and the earth
- 21. flat land near the edges of rivers formed by mud and silt deposited by floods
- 22. process that breaks rock into smaller pieces and does not change composition
- 26. physical and chemical process that change the characteristics of rock on or near the earth's surface
- 29. falling water droplets in the form of rain, sleet, snow, or hail
- 31. scale used to measure earthquakes
- 32. a body of land surrounded by water
- 33. point directly above the focus of the earth's surface
- 36. a point o land extending into and ocean or lake
- 38. also known as prairies
- 41. a lowland region that is saturated by water
- 47. part of an ocean or lake partially enclosed by land
- 49. huge chunks of ice that move because of gravity
- 50. plants, animals, living things
- 51. level at which rock is saturated
- 52. giant wave in the ocean
- 53. a large, level area of grassland with few or no trees
- 55. the place where a river flows into a lake or ocean
- 56. violent movement of the earth
- 57. a sheltered area of water deep enough for docking hips
- 58. graph that shows average daily temperature and precipitation for each month of the year for a specific location
- 59. ecosystem of a region
- 61. opening in the earth in which gases and lava escape from earths interior
- 62. a level of the oceans surface
- 64. flat, grassy, mostly treeless plains
- 66. small pieces of rock