Across
- 4. sits on lithosphere
- 5. Boundary that slides against each other
- 7. A subdivision of a period
- 8. Magma that emerges on the Earth's surface
- 9. strength of an earthquake
- 10. Discovered Pangea
- 12. one plate slides under another
- 14. A portion of earth made up of the crust and solid prat of the mantle
- 15. boundary between two rocks that are near each other
- 16. Boundary that comes together
- 18. people who study earthquakes
Down
- 1. The goowy plastic part below the lithosphere that plates float on
- 2. people who study volcanoes
- 3. pushes magma up vents
- 6. surface directly above the focus of an earthquake
- 11. the remains of prehistoric animals and plants preserved in rock
- 13. Intrusions that cut vertically across existing rock
- 16. Outer most part of earth
- 17. boundary that goes apart