THE EARTH

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Across
  1. 7. a dense ball of solid iron and nickel
  2. 8. in the troposphere all the earths what occurs here
  3. 9. the second layer of the atmosphere
  4. 10. the lower part of the mantle
  5. 11. the first layer of the atmosphere
  6. 12. the uppermost part of the mantle
  7. 13. a layer made up of molten iron and nickel
  8. 14. a dark rock with fine grains
  9. 15. the third layer of the atmosphere
  10. 19. the bottom part of the thermosphere
  11. 20. a rock with light color and coarse grains
Down
  1. 1. the highest part of the atmosphere in the thermosphere
  2. 2. a layer of hot, solid rock below the crust
  3. 3. the last layer of the atmosphere
  4. 4. in the thermosphere you can find this floating around
  5. 5. a wave produced by a earthquake
  6. 6. in the mesosphere you can find this being burned up
  7. 10. in the stratosphere you can find this flying
  8. 16. how we measure the climate
  9. 17. as we go down into the earth what increases
  10. 18. earths outer skin of rock