Across
- 6. What is another phrase we use to describe divergent oceanic-oceanic boundaries?
- 11. What layer of the earth contains convection currents?
- 12. What type of plate boundary occurs when two plates pull apart from one another?
- 14. What do we call the cracks in the earth formed by earthquakes?
- 15. What occurs at every type of plate boundary?
- 16. What do we call the process of one plate moving under another at convergent plate boundaries?
- 17. The earth is made up of how many major tectonic plates?
- 18. What type of plate boundary occurs when two plates slide past one another?
- 19. What do we call the vibrations sent through the earth by earthquakes?
Down
- 1. What forms because of seafloor spreading?
- 2. What do we call the circular motion of molten rock that pushes the plates?
- 3. What is formed ONLY by continental-continental divergent plate boundaries?
- 4. What do we call the place under the earth's surface where an earthquake originates?
- 5. What do we call the place on earth's surface where an earthquake first hits?
- 7. What is formed at convergent continental-continental boundaries?
- 8. What type of plate boundary occurs when two plates push toward one another?
- 9. The striped crust at divergent oceanic-oceanic boundaries show when the earth's WHAT flipped?
- 10. What layer of the earth contains the tectonic plates?
- 13. What are formed ONLY by oceanic-oceanic convergent plate boundaries?