SCIENCE CROSSWORD

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Across
  1. 2. the thinnest layer of the earth
  2. 3. when to boundarys slide together this forms
  3. 4. people in the US lives on the north american
  4. 6. something that transforms the land
  5. 9. this layer includes the crust and mantle
  6. 11. the middle of the earth
  7. 12. the first layer of the core
  8. 15. when the floor in the ocean spreads apart
  9. 17. the top most layer with the atmosphere
  10. 18. this is the inner most part of the core
  11. 20. a name for the properties of the earth
Down
  1. 1. when a oceanic plate meets a continental plate this forms
  2. 5. the theory about the plates we live on
  3. 7. where plates drift apart
  4. 8. when to compress into each other its called
  5. 10. when to things collide its called a
  6. 13. a mixture of iron and nickle
  7. 14. when to things move apart its called a
  8. 16. a layer of the earth that includes the lower layer
  9. 19. the largest layer of the earth