Plate tectonics
Across
- 1. a sub type of convergent plate boundary.Oceanic -
- 3. last name of person who developed plate tectonics theory
- 4. how many major plates are there in the world?
- 8. the largest plate
- 10. when two plates crash together
- 11. another sub type of convergent plate boundary. Continental-
- 13. segments of the lithosphere that move and change shape
- 15. the study of earthquakes
- 16. when two plates go in the opposite direction
- 17. convergent plate boundaries can produce this
- 18. when all the continents were once joined together
Down
- 2. weaker region in the mantle
- 4. when one plate goes under another plate
- 5. an opening in the crust where lava and hot gases can erupt
- 6. plates glide over Earth’s ____
- 7. can be an after effect of an earthquake
- 9. When two plates slide past each other
- 12. rigid layer of the uppermost mantle and crust
- 14. the center of the Earth
- 17. how many centimeters plate tectonics usually move each year