Across
- 2. when magma rapidly cools down
- 3. how the layers behave due to pressure and heat
- 4. movement driven by heat in the mantle causing continental drift
- 5. when boundaries come together
- 7. plates what we all stand on
- 10. a rapid shaking in the ground
- 12. where two crusts separate
- 14. what the oceanic crust is made out of
- 15. the innermost part of the earth
- 17. where the convection currents are located
- 18. the outermost layer of the Earth
- 19. vibrations that travel through the earth due to earthquakes
- 20. the primary rock in the continental crust
- 21. she mapped out the ocean floor
- 23. when two boundaries slide past each other
- 24. the materials or each layer
- 26. this protects us from radiation
- 27. He who discovered continental drift
Down
- 1. discovers by Alfred Wegner still a important part of the understanding of the Earth even today
- 6. this layer takes up most of Earths mass
- 8. a super continent that means all of Earth
- 9. a natural process in witch the poles switch
- 11. when new crust appears and moves away from the ridge
- 13. a semifluid material beneath the earths crust
- 16. the liquid layer of the earth
- 22. when a plate goes under another
- 25. what helped most in seafloor mapping