Across
- 3. the name of the large pieces of earths lithosphere that move over the asthenosphere
- 6. what is created when an oceanic plate sinks below a continental plate
- 8. what instrument do scientists use to measure the strength of earthquakes
- 9. what natural disasters often occur along plate boundaries
- 11. when plates rubs against each other
- 12. what happens when two continental plates collide
- 13. when a plate moves away from another
- 15. molten rock
- 17. supercontinent that existed 250 million years ago
- 19. what is the outmost solid layer of the earth called
- 20. what layer of earth is broken into tectonic plates
Down
- 1. where two tectonic plates meet
- 2. soft flowing layer under the lithosphere that the plates move on
- 4. what mountain range formed when the Indian plate collided with the Eurasian plate
- 5. what is the current that create circular motion of molten rock in the mantle
- 7. piece of the earths core that moves over the mantle
- 10. process where one plate moves towards another
- 14. what is the deep area in the ocean formed as a subduction zone called
- 16. what is a break or crack in the earths crust where movement occurred
- 18. scientist that is credited with continental drift