Across
- 3. a type of crust that is under land and is dense
- 4. a type of landmass that is magma filled
- 5. a device used to record an earthquakes seismic waves
- 8. type of boundary where 2 plates slide past eachother
- 11. a border where 2 plates meet
- 12. energy waves traveling from an earthquake
- 13. a theory stating that the continents drifted apart
- 14. innermost part of the earth
- 16. an ancient supercontinent containing all earths landmass
- 18. earth vibrations caused by plate movement
- 19. type of boundary between 2 colliding plates
Down
- 1. molten rock
- 2. outermost rigid layer of earth containing crust and upper mantle
- 6. a piece of earths crust that moves on top the mantle
- 7. a cycle of heating rising cooling sinking
- 9. where one plate sinks below another plate
- 10. a spot in earths mantle where hot magma rises to the surface
- 15. a type of boundary between 2 plates that move away from eachother
- 17. a break in earths crust from movement
- 20. a type of crust that's under the ocean that is thinner than continental crust