Across
- 3. the deformation of a material by stress
- 5. the force acting on the unit area of a material
- 9. the process of changing shape
- 10. openings where lava erupts onto earths surface
- 12. a geologic structure formed by layers or beds of rock being bent or folded
- 17. drift the moving of continents by earths tectonic plates
- 18. forms when hot molten lava crystalizes
- 20. chain of oceanic islands associated with
- 21. the study of earths magnetic field preserved in rocks
- 23. a scale of ten minerals varying on how hard they are
- 24. started out as another rock but changed from previous type
Down
- 1. the upper layer of Earth's mantle below the lithosphere
- 2. when two plates move away from each other
- 4. the solid outer part of earth
- 6. when two plates come together
- 7. a process where new oceanic crust is formed
- 8. an area in which there are several closely spaced faults
- 11. a chain of underwater mountains formed by seafloor spreading by divergent plate boundaries
- 13. a theory that explains how large landmasses were formed
- 14. places where the plates slide by each other
- 15. the process in which 3 types of rock form into one another
- 16. formed from pre existing rocks
- 19. a fracture or zone between 2 rocks
- 20. general equilibrium in the earth's crust maintained by a yielding flow of rock material beneath the surface under gravitative stress.
- 22. substances naturally formed in earth