Across
- 2. hard, outermost layer of the earth
- 5. an act of changing physical location
- 7. a line that marks the limits of an area
- 8. region of the interior of the earth between the core and the crust
- 11. the rigid outer part of the earth, consisting of the crust and upper mantle
- 12. a thin, flat sheet or strip of a material
- 13. a section of the crust of the earth that moves relative to each other
- 15. upper layer of the earth's mantle
- 16. a system of ideas intended to explain something
- 19. a mountain or hill having a vent which lava is being erupted from the earth's crust
Down
- 1. a long high sea wave caused by an earthquake, submarine landslide, or other disturbance
- 3. to go in a different direction
- 4. the hypothetical landmass that existed when all continents were joined
- 6. oceanic tectonic plate that lies beneath the Pacific Ocean
- 9. to slide past
- 10. a sudden and violent shaking of the ground
- 14. coming closer together
- 17. long, narrow hilltop, or mountain range
- 18. the remains of a prehistoric organism preserved in petrified form
- 20. the central portion of the earth