Evolution of Science Theories

Edit Answers
12345678910111213141516
Across
  1. 4. a theory that the continents were once one large landmass that broke apart and moved to their present locations
  2. 5. center liquid layer of earth
  3. 7. found at the mid ocean ridge
  4. 8. outermost layer of earth
  5. 12. super continent that existed millions of years ago
  6. 14. a crack in the ocean floor that magma oozes from
  7. 15. found furthest away from the ridge at the deep sea trenches
  8. 16. 50,000 mile mountain in the ocean
Down
  1. 1. a depressed area where oceanic crust goes beneath continental crust
  2. 2. created when less dense material rises and cooler denser material sinks
  3. 3. dense solid center of earth
  4. 6. the process through which more dense oceanic crust slips under the less dense continental crust
  5. 9. a theory that describes how magma rises from earth, cools and hardens forming oceanic crust and as magma rises crust is pushed away from the ridge
  6. 10. proposed seafloor spreading theory
  7. 11. thick molten material within earth
  8. 13. layer between crust and core