Lithosphere Review-Part 2

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Across
  1. 5. a dense, destructive mass of very hot ash, lava fragments, and gases ejected explosively from a volcano and typically flowing downslope at great speed(2-words)
  2. 6. the primary wave arrives at a given point before any other type of seismic wave, the wave also travels through solids, liquids, and gases
  3. 8. an instrument that records earthquake waves (seismograph)
  4. 11. Principle of ____________ states that geologic processes (volcano, tsunami, EQs) that occur today, occurred in the past and will occur in the future
  5. 13. a destructive mud, ash, and debris flow from the slopes of a volcano
  6. 16. scientist who studies the movements of Earth
  7. 18. A type of seismic wave that moves the ground side to side and arrives second.
  8. 19. scientific scale that measures the energy of earthquakes(2-words)
  9. 20. a fissure in the earth's crust (or in the surface of some other planet) through which molten lava and gases erupt
  10. 21. the branch of geology that studies earthquakes
Down
  1. 1. The theory of ________ ______ states that the continents once formed a single landmass, broke up, and drifted to their present locations(2-words)
  2. 2. The law of _____ _____ States any time period can be recognized by its fossil content in rock of the same age(2-words)
  3. 3. The theory of _________ _________ states that Earth's lithosphere is made up of crustal plates that are in constant motion, driven by convection currents in the mantle(2-words)
  4. 4. (AKA focus). It is the actual location or starting point of an earthquake underground.
  5. 7. the point on Earth's surface directly above the focus of an earthquake
  6. 9. the law of ____________ states that a sedimentary rock layer is older than the layers above it and younger than the layers below it if the layers are undisturbed
  7. 10. the shaking that results from the movement of rock beneath Earth's surface
  8. 12. __________ ________ theory Tectonic plates come in contact, pressure builds and releases as earthquakes(2-words)
  9. 14. The Principle of ___________ states in a sequence of sedimentary rocks, layers of rock were originally formed lying horizontally by gravity
  10. 15. stationary column of magma which burns through moving tectonic plates, ex. Hawaiian
  11. 17. a long high sea wave caused by an earthquake, landslide, or other uplift disturbance.