!4 terms science crossword puzzle

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Across
  1. 1. The thin and solid outermost layer of the earth.
  2. 6. Drift The hypothesis that states that the continents once formed a single landmass broke up and drifted to their current locations.
  3. 7. Stress that occurs when forces act to stretch an object.
  4. 9. The central part of the Earth below the mantle.
  5. 11. The rising of regions of the Earth's crust to higher elevations.
  6. 12. spreading The process by which new oceanic lithosphere forms as magma rises toward surface and solidifies.
  7. 14. tectonics, The theory that the Earth's lithosphere is divided into tectonic plates that move around on top of the asthenosphere.
Down
  1. 2. plates A block of lithosphere that consists of the crust and the rigid outermost part of the mantle.
  2. 3. The break in a body of rock along which one block slides past each other.
  3. 4. The soft layer of the mantle on which tectonic plates move.
  4. 5. The bending of rock layers due to stress.
  5. 8. The strong lower part of the mantle.
  6. 10. The layer of rock between the Earth's crust and core.
  7. 13. The outermost rigid layer of the earth.