Earth's Structure

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Across
  1. 4. molten rock flows through a rift on the ocean floor
  2. 7. crust under the ocean
  3. 9. model explaining how plates make landforms
  4. 10. slow movement of Earth's plates
  5. 11. long row of sharp mountains
  6. 15. Section of Earth's crust
  7. 17. type of current within Earth's mantle
  8. 18. decayed plant and animal matter
  9. 19. so hot it becomes liquid
  10. 20. deep underwater valley
Down
  1. 1. outer part of earth consists of crust & mantle
  2. 2. layer of soil below the topsoil
  3. 3. solid layer of crust firmly attached to Earth
  4. 5. layer of Earth below the crust
  5. 6. bending upward of Earth's crust
  6. 8. crust that lies under land
  7. 12. layer of solid metal at the center of Earth
  8. 13. layer just below the mantle
  9. 14. a break in Earth's crust
  10. 16. the upper layer of soil