Unit 1

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Across
  1. 4. the strongest type of convection currents
  2. 5. this boundary causes plates to move apart
  3. 8. plates move towards eachother
  4. 9. areas where magma rises to the surface (not along a boundary)
  5. 10. thinnest of the Earth's layers
  6. 12. plates move against eachother on this tectonic boundary
  7. 14. one tectonic plate is forced into the mantle through convergence
  8. 15. layer of the middle Earth
  9. 16. result of the movement of polar and Hadley cells
  10. 17. the ability of a surface to trap heat
Down
  1. 1. this causes tectonic plates to move
  2. 2. the weakest type of convection currents
  3. 3. caused by the tilt of the earth on its axis
  4. 6. this area has the most volcanic and seismic activity
  5. 7. layer of the atmosphere in which most wind and weather events occur, like convection currents
  6. 11. this tends to happen at the end of each geologic period
  7. 13. the area where deserts form (behind mountain ranges)