Monday, June 4, 2018

revision Earthquakes

Skills Worksheet
Directed Reading A
Section: What Are Earthquakes?
  1. What is seismology?
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  2. The scientists who study earthquakes are called ______________________
Where do earthquakes occur?
  3. Where do most earthquakes take place?
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  4. Giant pieces of Earth’s thin, outermost layer are called ______________________
  5. When tectonic plates move and slip past each other, they cause ______________________in Earth’s crust.
  6. Why do earthquakes occur along faults?
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What Causes earthquakes?
Match the correct definition with the correct term. Write the letter in the space provided.
Text Box:  a. deformation
 b. plastic deformation
 c. elastic deformation
 d. elastic rebound
_____   7. rock deformation that is like a stretched rubber band and leads to earthquakes
_____   8. change in the shape of rocks in response to stress
_____   9. sudden return of elastically deformed rock to its undeformed shape
_____ 10. rock deformation that is like a piece of molded clay and does not lead to earthquakes


Directed Reading A continued
11. What causes rock deformation?
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12. What occurs when more pressure is applied to a rock than it can withstand?
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13. During elastic rebound, energy is released that travels as seismic waves. What do the seismic waves cause?
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FAULTS AT TECTONIC PLATE BOUNDARIES
_____ 14. Places where a large number of faults are located are
a.  convergent zones.                       c.  earthquake zones.
b.  divergent zones.                          d.  boundary zones.
Write the correct definition with the correct term. .
_____ 15. occurs where two plates slip past each other
_____ 16. occurs where two plates push together
_____ 17. occurs where two plates pull away from each other
18. Where do most earthquakes happen?
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Directed Reading A continued
how do earthquake waves travel?
_____ 19. Seismic waves that travel through Earth’s interior are
a.  surface waves.                             c.  earth waves.
b.  body waves.                                 d.  secondary waves.
_____ 20. Seismic waves that travel along Earth’s surface are
a.  surface waves.                             c.  earth waves.
b.  body waves.                                 d.  secondary waves.
______ 21. Which of the following is a type of body wave?
a.  surface wave                                c.  R wave
b.  S wave                                           d.  convergent wave
_____ 22. Which of the following is the fastest type of seismic wave?
a.  surface waves                              c.  S waves
b.  body waves                                  d.  P waves
_____ 23. Waves that travel through solids, liquids, and gases are
a.  surface waves.                             c.  P waves.
b.  S waves.                                        d.  convergent waves.
_____ 24. Another name for a pressure wave is
a.  convergent wave.                        c.  primary wave.
b.  surface wave.                               d.  secondary wave.
_____ 25. Which of the following is another name for an S wave?
a.  secondary wave                           c.  surface wave
b.  P wave                                           d.  primary wave
_____ 26. An S wave is unable to travel through
a.  solids.                                            c.  rubber.
b.  liquid.                                            d.  rock.
_____ 27. How many types of surface waves are there?
a.  one                                                 c.  three
b.  two                                                 d.  four
28. What does the speed of a seismic wave depend on?
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29. Which are always the first waves of an earthquake to be detected?
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30. Which type of body wave always arrives second?
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Directed Reading A continued
31. How are surface waves different from body waves?
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Write  the correct definition with the correct term. Write the letter in the space provided.
_____ 32. wave of energy that travels through Earth, away from an earthquake in all directions
_____ 33. seismic wave that causes particles of rock to move in a back-and-forth direction
_____ 34. seismic wave that causes particles of rock to move in a side-to-side direction


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