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Glencoe Science: Level Blue, Student Edition

Alton Biggs, Ralph M. Feather Jr., Peter Rillero, Dinah Zike

Chapter 8

Earthquakes and Volcanoes - all with Video Answers

Educators


Section 1

Chapter Review

Problem 1

Explain the differences between the vocabulary words in each of the following sets.
fault-earthquake

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18:45

Problem 2

Explain the differences between the vocabulary words in each of the following sets.
shield volcano-composite volcano

Danielle Ashley
Danielle Ashley
Numerade Educator

Problem 3

Explain the differences between the vocabulary words in each of the following sets.
focus-epicenter

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Problem 4

Explain the differences between the vocabulary words in each of the following sets.
seismic wave-seismograph

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Problem 5

Explain the differences between the vocabulary words in each of the following sets.
tsunami-seismic wave

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00:19

Problem 6

Explain the differences between the vocabulary words in each of the following sets.
epicenter-earthquake

Morgan Thompson
Morgan Thompson
Numerade Educator
18:45

Problem 7

Explain the differences between the vocabulary words in each of the following sets.
cinder cone volcano-shield volcano

Danielle Ashley
Danielle Ashley
Numerade Educator

Problem 8

Which type of plate boundary caused the formation of the Soufrière Hills volcano?
A) divergent
C) rift
B) transform
D) convergent

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Problem 9

What is a cone-shaped mountain that is built from layers of lava?
A) volcano
C) vent
B) lava flow
D) crater

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03:01

Problem 10

What is the cause of the volcanoes on Hawaii?
A) rift zone
B) hot spot
C) divergent plate boundary
D) convergent plate boundary

Brenda Sanchez
Brenda Sanchez
Numerade Educator

Problem 11

Which type of lava flows easily?
A) silica-rich
C) basaltic
B) composite
D) smooth

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Problem 12

Which type of volcano is built from alternating layers of lava and tephra?
A) shield
C) lava dome
B) cinder cone
D) composite

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Problem 13

Which type of volcano is relatively small with steep sides?
A) shield
C) lava dome
B) cinder cone
D) composite

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Problem 14

Which seismic wave moves through Earth at the fastest speed?
A) primary wave
B) secondary wave
C) surface wave
D) tsunami

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02:09

Problem 15

Which of the following is a wave of water caused by an earthquake under the ocean?
A) primary wave
B) secondary wave
C) surface wave
D) tsunami

Eduard Sanchez
Eduard Sanchez
Numerade Educator

Problem 16

What is the point on Earth's surface directly above an earthquake's focus?
A) earthquake center
B) epicenter
C) fault
D) focus

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Problem 17

Infer Why does the Soufrière Hills volcano erupt so explosively?

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18:45

Problem 18

Compare and contrast composite and cinder cone volcanoes.

Danielle Ashley
Danielle Ashley
Numerade Educator
01:32

Problem 19

Explain how the composition of magma can affect the way a volcano erupts.

Nicholas L'Heureux
Nicholas L'Heureux
Numerade Educator
02:00

Problem 20

Evaluate What factors determine an earthquake's intensity on the modified Mercalli scale?

Thane Stiles
Thane Stiles
Numerade Educator
00:58

Problem 21

Compare and contrast magnitude and intensity.

Alison Rodriguez
Alison Rodriguez
Numerade Educator

Problem 22

Make Models Select one of the three forms of volcanoes and make a model, using appropriate materials.

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01:34

Problem 23

Draw Conclusions You are flying over an area that has just experienced an earthquake. You see that most of the buildings are damaged or destroyed and much of the surrounding countryside is disrupted. What level of intensity would you conclude for this earthquake?

Julie Silva
Julie Silva
Numerade Educator

Problem 24

Concept Map Copy and complete this concept map on examples of features produced along plate boundaries. Use the following terms: Mid-Atlantic Ridge, Soufrière Hills volcano, divergent, San Andreas Fault, convergent, and transform.

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Problem 25

Oral Presentation Research the earthquake or volcano history of your state or community. Find out how long ago your area experienced earthquake- or volcanorelated problems. Present your findings in a speech to your class.

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04:02

Problem 26

Earthquake Epicenter If a P-wave arrives at a seismograph station at 9:07 AM and the $S$-wave arrives at the same seismograph station at 9:09 AM, about how far is that station from the epicenter of the earthquake?

Abhishek Jana
Abhishek Jana
Numerade Educator
01:06

Problem 27

Arrival Time A seismograph station is $2,500 \mathrm{~km}$ from the epicenter of an earthquake. What is the difference in time between the $P$-wave arrival time and the S-wave arrival time?

Raj Bala
Raj Bala
Numerade Educator