Ch 1. and Ch. 3 Crossword

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Across
  1. 6. destruction
  2. 9. the changing of a liquid into a gas
  3. 10. the rigid outer part of the earth
  4. 12. the layer of the earth's atmosphere
  5. 14. outermost layer of a planet
  6. 15. plates the two-sub layers of the earth's crust that move
  7. 16. the central region of the earth
  8. 18. practice of farming
Down
  1. 1. resource materials or substances such as minerals,forests,and water
  2. 2. a substance that is harmful that goes into the environment
  3. 3. deals with the relations of organisms
  4. 4. the lowest region of the atmosphere
  5. 5. regions of matter that make up the earth
  6. 7. the variety of life in a particular habitat or ecosystem
  7. 8. interior of the earth between the core
  8. 11. the upper layer of the earth's mantle
  9. 13. the envelope of gases surrounding the earth
  10. 17. the emission of electromagnetic waves
  11. 19. effect the trapping of the sun's warmth
  12. 20. the process by which heat or electricity is directly transmitted