Skills Worksheet
Directed Reading A
Section: What Are Earthquakes?
1. What is seismology?
__________________________________________________________
__________________________________________________________
2. The scientists who study earthquakes are
called ______________________
Where do earthquakes occur?
3. Where do most earthquakes take place?
__________________________________________________________
__________________________________________________________
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?
__________________________________________________________
__________________________________________________________
What Causes earthquakes?
Match the correct definition with the
correct term. Write the letter in the space provided.
_____ 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?
__________________________________________________________________
__________________________________________________________________
__________________________________________________________________
12. What
occurs when more pressure is applied to a rock than it can withstand?
__________________________________________________________
13. During
elastic rebound, energy is released that travels as seismic waves. What do the
seismic waves cause?
__________________________________________________________
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?
__________________________________________________________
__________________________________________________________
__________________________________________________________
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?
__________________________________________________________
__________________________________________________________
29. Which
are always the first waves of an earthquake to be detected?
__________________________________________________________
30. Which type of body wave always arrives second?
__________________________________________________________
Directed Reading A continued
31. How
are surface waves different from body waves?
__________________________________________________________
__________________________________________________________
__________________________________________________________
__________________________________________________________
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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