Across
- 3. when two plate pull apart
- 7. measures the intensity of volcanoes
- 10. a break or crack in the Earths surface
- 11. when two plates slide together
- 12. an area of Earth's mantle where hot plumes rise upward
- 14. when two plates come together
- 15. the main molecule that makes up magma
- 16. the largest layer of the Earth
Down
- 1. a solid layer on the surface of the earth that we stand on
- 2. the only liquid layer
- 4. the point above the focus
- 5. when oceanic crust goes under continental
- 6. an earthquake that occurs after the main one
- 8. solid ball of metal
- 9. the resistance to flow
- 13. a device that measures damage