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Index
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earthquakes
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Chapter 1
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Level 1
level: Level 1
Questions and Answers List
level questions: Level 1
Question
Answer
sudden and violent shaking of the ground, as a result of movements within the earth's crust or volcanic action
earthquake
massive slab of solid rock made up of Earth's lithosphere (crust and upper mantle)
Tectonic plate
heat-driven cycles that occur in the air, ocean, and mantle caused by a difference in temperature
Convection currents
Primary waves, are the first waves to arrive at a seismograph.
P wave
secondary waves, are the second waves to arrive during an earthquake
S wave
instruments used to record the motion of the ground during an earthquake.
Seismograph
the recording of the ground shaking at the specific location of the instrument
Seismogram