Posted by: crisdiaz24 | May 3, 2017

EARTHQUAKES – SHOCK WAVES EXPLANED – Video listening

EARTHQUAKES – SHOCK WAVES EXPLANED

  1. The Plate Tectonics Theory was developed in ________________.
  2. The plates which make up the crust of the Earth move on ________________.
  3. San Andreas helps the North American Plate slide past the ________________.
  4. This fault moves about ________________ every year.
  5. One of the most important breakthroughs in the study of earthquakes dates back to ________________.
  6. Harry Fielding Reid used the information collected from land ________________ to measure the changes in land ________________ caused by earthquakes.
  7. Fielding Reid developed the first ________________ about forces accumulating along faults.
  8. The ________________ of the two slabs of the crust gets distorted and ________________ build up on that surface.
  9. In the beginning, the process is very __________, but it then ________________ from an inch a year to ________________.
  10. In the Bay area, there are ________________ of the San Andreas Fault spreading out.
  11. Little faults, like smaller ________________, produce different ________________ earthquakes.
  12. Scientists think that a damaging earthquake is nearly ________________ as likely to happen as not in the next _______________.

 

KEY

 

  1. THE 1960S
  2. FAULTS
  3. PACIFIC PLATE
  4. TWO AND A HALF INCHES 
  5. 1908
  6. SURVEYS – SURFACE
  7. SCIENTIFIC THEORIES
  8. FRICTION – STRESSES
  9. SLOW – SPEEDS UP – 5000 MILES AN HOUR
  10. BRANCHES
  11. TWIGS – SIZE
  12. TWICE – 30 YEARS
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