Across
- 1. uppermost layer of the Earth
- 4. crust and mantle of the earth
- 6. are at the center of the Earth
- 12. variety of plants and animals living on the planet
- 14. underground layer of rock through which water flows
- 15. climates in large cities
- 17. process by which weathered bits of rock are moved elsewhere by water, wind, or ice
- 20. process in which rock is broken into smaller pieces by water, ice, chemicals or plants
- 22. cutting down forests without replanting
- 27. part of the water cycle; process by which water changes from gas to liquid
- 28. hot melted rock inside the earth that flows to the surface when a volcano erupts
- 29. plateau off of a continent that lies under the ocean and stretches for several miles
- 31. place shared by plants and animals that depend on one another for survival
- 32. areas that have similar patterns of temperature and rainfall, and may have similar vegetation
- 33. to change
- 34. careful use of resources to avoid wasting them
- 36. part of the water cycle; process by which water changes from liquid to gas
- 39. processes within the Earth form continents and cause their movements
- 40. a method of accomplishing something
- 42. changing what is planted from year to year
- 45. process of collecting water and distributing it to crops
- 49. Earth’s thickest layer, found between the core and the crust
- 50. smog combined with precipitation
- 51. to relieve pressure
- 53. layer of oxygen and other gases that surrounds Earth
- 54. powerful chemicals that kill crop destroying insects
Down
- 1. part of the water cycle; process in which streams & rivers carry rain water back to the oceans
- 2. large landmass that rises above an ocean
- 3. water that filters through the soil into the ground
- 5. state of being easy or possible to get or use
- 7. to spread out
- 8. the detailed mapping or charting of the features of a relatively small area, district, or locality.
- 9. steadily flowing stream of water in the ocean
- 10. weather phenomenon marked by very heavy rains in Western S. America and severe storms in N. America
- 11. rain or snow
- 13. to describe or establish
- 16. crack in the Earth’s crust where two tectonic plates meet
- 18. polluting chemicals combined with ozone
- 19. wind patterns that are similar over time
- 21. the water on or surrounding the surface of the globe, including the water of the oceans and the water in the atmosphere.
- 23. happening a lot or all the time.
- 24. gases in the atmosphere that trap the sun’s warmth
- 25. pattern of weather that takes place in an area over many years
- 26. effect of mountains that blocks rain from reaching interior regions
- 30. a thickness or fold
- 35. system in which water moves from the Earth to the air and back to the Earth
- 37. weather phenomenon marked by unusually cool waters in the eastern Pacific, and low amounts of rainfall
- 38. to be found in
- 41. sudden and violent movement of the Earth’s crust that shakes the land
- 43. to increase in amount
- 44. wind pattern typical of a small area
- 46. Changes in temperature, wind speed and direction, and air moisture that take place
- 47. the part of the earth's crust, waters, and atmosphere that supports life.
- 48. a deep cut in the ocean floor
- 52. area that includes particular kinds of plants and animals adapted to conditions there