The Science Brain Game

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Across
  1. 3. solid,rigid part of the earth's crust and the upper mantle
  2. 4. a small extremely hot region within the mantle
  3. 5. large underground pools of molten magma
  4. 7. slow moving currents of magma within the mantle
  5. 8. the thickest layer of the earth
  6. 9. proposed the theory of continental drift
  7. 10. no longer active or erupting, but capable of erupting one day
  8. 11. where two plates slide past one another
  9. 15. where oceanic plates converge and the older, more dense plate is subducted
  10. 16. fractures that form where the crust is stretched apart
  11. 17. waves that earthquakes produce
  12. 18. valley that forms where continental crust is stretched and becomes thin
  13. 19. name of a large landmass
Down
  1. 1. where two plates move away from each other
  2. 2. pliable, dense, upper part of the mantle
  3. 6. layer of earth that is a solid and has extreme pressure
  4. 7. where two plates collide
  5. 12. the process of an older oceanic plate being pulled under another plate
  6. 13. underwater mountain range produced by a divergent plate boundary
  7. 14. proposed the theory of seafloor spreading