Across
- 3. ridge- a range of underwater volcanoes that wrap around the globe
- 4. the force applied to a rock nd may cause deformination.
- 6. boundary- places where plates slide slideways past eachother.
- 8. rock- form when hot molten rock crystallizes and solidifies.
- 10. zone- zones of fractures between two blocks of rock.
- 13. tectonics- plates which move slowley over the underlying mantle.
- 17. when tectonic processes put stress on a rock and the rock bends instead of breaking.
- 18. the branch of geophysics concerned with the magnetism in rocks that was induced by the earth's magnetic field
- 20. cycle- how each of the three major rock types form and break down
- 21. behaves as if it constits of bloocka floating on the underlying mantel.
- 23. floor spreadig- occurs at divergent plate boundaries, as tectonic plates slowly move away.
- 24. a solid substance with a fairly well defined chemical composition
Down
- 1. rigid outer part of the earth, consisting of the crust and upper mantel.
- 2. boundary-when two plates come together
- 5. rock- form around once living oganisms.
- 7. upper layer of the earth's mantle
- 9. changing in shape or distorting
- 11. boundary- occurs when two tectonic plates move away from eachother
- 12. rock- formed in high heat, high pressure
- 14. drift- continents move over time
- 15. fractures between two blocks of rock
- 16. a mountain having a crater through which lava has been created
- 19. hardness scale- way to identify minderals
- 21. arc- a chain of volcanic islands near the ocean
- 22. changing in shape/size resauting from applied forces.