unit 5 vocab words

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Across
  1. 2. a circular movement of fluids caused by the rising of hotter less dense fluid and the falling of cooler,denser fluid
  2. 3. a place where two tectonic plates move away from each other
  3. 4. the boundary between two tectonic plates moving torward each other,resulting in volcanic activity when a denser oceanic plate subducts or moves below a continental plate or another oceanic plate
  4. 5. The mechanical or chemical processes by which gravity, water, wind, and ice break rocks into smaller pieces
  5. 7. the cool rigid outermost layer of earth that consists of the crust
  6. 11. A place where two tectonic plates slide past each other
  7. 14. The distance above sea level
  8. 15. the solid layer plasticity in the upper mantle that is located just below the lithosphere;lithospheric plates "float" and move on this layer
  9. 17. The difference in elevation between two adjacent contour lines of a map
  10. 20. Photos or images taken of Earth from space
  11. 21. The process by which gravity, water, wind, and ice remove and transport sediment from one place to another
  12. 22. deep and narrow depression in the seafloor where the subducted plate moves into the asthenosphere
Down
  1. 1. A line on a map that connects points with the same elevation
  2. 6. drift the theory that continents were once connected but drifted apart
  3. 8. A map showing changes in elevation of Earth’s surface
  4. 9. The process in which a denser plate is pushed downward beneath a less dense plate when plates converge
  5. 10. a major geological process;occurs when continental plates of equal density converge;creating mountains
  6. 12. The process by which gravity, water, wind, and ice deposit weathered and relocated sediment
  7. 13. A phenomenon by which magma from Earth’s mantle comes up at the mid-ocean ridge and creates new oceanic crust
  8. 16. the theory that the crust is divided into larger pieces called tectonic plates that slowly move on top of the mantle
  9. 18. the mineralized remains of organisms,showing how long-dead organisms lived
  10. 19. Earth’s surface that shows evidence of the natural processes of weathering and the removal and relocation of weathered materials