Plate Tectonics Crossword Puzzle By Siju John

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Across
  1. 1. move apart.
  2. 4. move on a plasticlike layer of the mantle
  3. 7. The idea that the continents drift slowly with tectonic plates.
  4. 8. convert or change.
  5. 9. hot, less dense material below Earth's crust rises toward the surface at the mid-ocean ridge.
  6. 13. rigid layer of Earth's crust and part of the upper mantle.
  7. 15. the next layer of earth composed of iron and nickel
Down
  1. 2. the innermost layer of earth composed or iron-nickel alloy.
  2. 3. current in Earth's mantle that transfers heat inside earth and moves tectonic plates.
  3. 5. Come together.
  4. 6. lies beneath the crust.
  5. 10. part of the upper layer of the mantle under the lithosphere.
  6. 11. Earth's crust and part of the upper mantle are broken into sections
  7. 12. exterior layer of earth of earth
  8. 14. The theory that the plates used to be one piece.