Unit 5 vocab

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Across
  1. 1. a mechanical wave that propagates along the interface between differing media
  2. 5. the outermost shell of a terrestrial planet
  3. 8. the region of the earth's interior between the crust and the core
  4. 9. boundaries a fault along a plate boundary where the motion is predominantly horizontal.
  5. 11. a low area between hills or mountains
  6. 12. when two tectonic plates move away from each other
  7. 15. the electrical depolarization of the atria of the heart.
  8. 16. waves produced by an earthquake
  9. 18. a long high sea wave caused by an earthquake, submarine landslide, or other disturbance.
  10. 19. Boundaries when two plates come together
  11. 21. a hot dense ball of mostly iron seismicwaves waves that travel through or over earth
  12. 23. the rigid outer part of the earth
  13. 27. an extended break in a body of rock
  14. 28. a long narrow ditch
  15. 30. stiff, sticky fine-grained earth,
  16. 31. the formation of new areas of oceanic crust, which occurs through the upwelling of magma at midocean ridges and its subsequent outward movement on either side.
  17. 32. a soil with roughly equal proportions of sand, silt, and clay.
Down
  1. 2. a sudden and violent shaking of the ground
  2. 3. one of the earliest ways geologists thought continents moved over time
  3. 4. has a crater or vent through which lava, rock fragments, hot vapor, and gas erupt
  4. 5. a current in a fluid that results from convection.
  5. 6. the upper layer of earths mantle
  6. 7. layer of the Earth between the solid inner core and lower mantle.
  7. 10. a supercontinent that incorporated almost all the landmasses on Earth
  8. 13. the state of being stretched tight.
  9. 14. plates pieces of Earth's crust and uppermost mantle
  10. 17. upper layer of earth in which plants grow
  11. 20. of fire a path along the Pacific Ocean characterized by active volcanoes and frequent earthquakes
  12. 22. break off or cause to break off, owing to a structural strain.
  13. 24. the sideways and downward movement of the edge of a plate of the earth's crust into the mantle beneath another plate.
  14. 25. tall and rocky
  15. 26. the reduction in volume (causing an increase in pressure)
  16. 29. the organic component of soil