Layers of the earth

12345678910111213141516171819202122232425
Across
  1. 5. started out as some other type of rock, but have been substantially changed from their original igneous, sedimentary, or earlier metamorphic form.
  2. 10. the gradual movement of the continents across the earth's surface through geological time.
  3. 15. a geologic structure that is formed by layers or beds of rock being bent or folded
  4. 16. when two tectonic plates move away from each other
  5. 18. used as a convenient way to help identify minerals.
  6. 19. a seafloor mountain system formed by plate tectonics
  7. 21. a fracture or zone of fractures between two blocks of rock
  8. 22. a naturally occurring inorganic element or compound having an orderly internal structure and characteristic chemical composition, crystal form, and physical properties.
  9. 24. the force acting on the unit area of a material.
  10. 25. a fracture or zone of fractures between two blocks of rock
Down
  1. 1. a web of processes that outlines how each of the three major rock types—igneous, metamorphic, and sedimentary—form and break down based on the different applications of heat and pressure over time.
  2. 2. a scientific theory that explains how major landforms are created as a result of Earth's subterranean movements
  3. 3. places where plates slide sideways past each other
  4. 4. an area on Earth where two or more lithospheric plates collide
  5. 6. the solid, outer part of Earth.
  6. 7. the deformation of a material from stress.
  7. 8. the upper layer of the earth's mantle, below the lithosphere, in which there is relatively low resistance to plastic flow and convection is thought to occur.
  8. 9. openings, or vents where lava, tephra (small rocks), and steam erupt onto the Earth's surface.
  9. 11. rock formed at or near Earth's surface by the accumulation and lithification of sediment (detrital rock) or by the precipitation from solution at normal surface temperatures (chemical rock).
  10. 12. form when hot, molten rock crystallizes and solidifies.
  11. 13. long chains of active volcanoes with intense seismic activity found along convergent tectonic plate boundaries
  12. 14. the study of ancient pole positions and makes use of remanent magnetization to reconstruct the direction and strength of the geomagnetic field in the past.
  13. 17. The action or process of changing in shape or distorting, especially through the application of pressure.
  14. 20. the rising or settling of a portion of the Earth's lithosphere that occurs when weight is removed or added in order to maintain equilibrium
  15. 23. a geologic process in which tectonic plates—large slabs of Earth's lithosphere—split apart from each other