Across
- 5. This layer makes up 84% of earth's mass
- 7. this feature forms when an oceanic and continental plate colide
- 10. the liquid layer of the earth
- 13. theory that continents drift apart
- 14. This is the hottest and densest layer
- 17. Process in which new oceanic crust is created, and it is where tectonic plates pull apart
- 19. Hot liquid present in volcanos ready to erupt in many
- 20. What oceanic crust is made of
- 21. This heat transfer drives plate motion due to density differences
- 23. This crust is made out of granite rock
- 24. Type of boundary that go one way or the other
- 25. The earth's study in magnetic polarity, as recorded in rocks that are high in iron
Down
- 1. this feature forms when 2 ocean plates seperate
- 2. this theory stated that continents once existed as one big continent
- 3. Type of boundary that pushes together
- 4. layer of rock that forms the outer shell at the top of earth's interior
- 6. this crust is made of basaltic rock
- 8. The least dense layer of the earth
- 9. Scientist that proposed the continental Drift theory
- 11. when earth's magnetic field flips, we call that phenomenon magnetic ________
- 12. Process in which causes oceanic crust to melt, and the materials make new continental crust
- 15. materials of high liquid in liquid form
- 16. Type of plate boundary that both plates push apart
- 18. A natural rapid shaking of the lithosphere caused by the release of energy
- 22. what happens when 2 divergant continental plates start pulling apart.