Across
- 2. natural creation/geologic feature of the Earth
- 3. large slabs of lithosphere that move
- 8. satellites and receivers used to determine location on Earth
- 9. edge of continent that is underwater
- 10. sudden shaking due to seismic activity of a fault
- 11. process through which new ocean floor is made
- 13. how heat flows; warm rises and cool sinks
- 14. continuous underwater mountain range
- 16. valley created when tectonic plates drift apart
- 17. steep-sided depression on ocean floor
- 19. the pull toward the center of the Earth
- 20. mountain or hill that can vent lava and hot vapor
- 21. divergent; makes sea-floor spreading
Down
- 1. tranform or transverse; cause earthquakes
- 4. convergent; creates mountains
- 5. supercontinent that existed approximately 250mya
- 6. large continuous landmass
- 7. remains of plants and animals from long ago
- 12. theory that Earth's outer layer is made of moving plates
- 15. forms when a rift valley fills with water
- 18. molten rock under Earth's surface