Earthquakes Theme Unit

Earthquakes Theme Unit
03/25/2006 01:06 AM
Earthquakes Theme Unit
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Earthquakes Theme Unit
03/25/2006 01:06 AM
Name _____________________________
Date ___________________
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Earthquakes Theme Unit
Down
1. a break in Earth's crust along which sections
of rocks slide past each other
3. A device that records earthquake waves. This
helps to calculate the time, strength, and
duration of earthquakes.
4. the science that studies earthquakes and their
causes
5. A series of large waves that is caused by an
underwater earthquake or volcanic eruption.
These waves can travel as fast as 950 km per
hour!
6. waves generated by an earthquake that travel
through Earth or along its surface (2 words)
7. a Greek prefix meaning "earthquake"
9. a numerical scale used to measure the
magnitude or energy release of an earthquake
(2 words)
11. the size of a seismic wave generated by an
earthquake
12. the point underground where the movement
of an earthquake first takes place
15. one of about 30 giant sections of the Earth's
lithosphere
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03/25/2006 01:06 AM
Across
2. an earthquake which follows a larger
earthquake and originates at or near the focus
of the larger earthquake
4. a recording produced by a seismograph.
6. scientists who specialize in the study of
earthquakes and seismic activities
8. the layer of Earth, under the crust, in which
plate movement is generated
10. These are the second waves to strike in an
earthquake and can travel through solids,
but these waves cannot travel through
liquids. (2 words)
13. the innermost layer of Earth
14. the solid, outermost layer of Earth
16. a scale that measures the damage caused by
an earthquake at different locations (2
words)
17. These are the first waves to strike in an
earthquake and can travel through both
solids and liquids. (2 words)
18. 80% of all major earthquakes in the world
happen here (4 words)
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Earthquakes Theme Unit
03/25/2006 01:06 AM
Answer Key
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