Download Chapter 5 Review

CHAPTER 5 REVIEW
Reviewing Key Terms
If the statement is true, write true. If it is false, change the underlined word or words to make the
statement true.
(6)Continental crust is made of rocks such as granite.
(7)Slow movements of mantle rock called radiation transfer heat in the mantle.
(8)The single landmass that broke apart 250 million years ago was Pangaea.
(9)Mid-ocean ridges are places where oceanic crust sinks back to the mantle.
(10)When two continental plates diverge, a transform boundary forms.
Checking Concepts
(11)What kinds of indirect evidence do geologists use to study the structure of Earth?
(12)How do temperature and pressure change as you go deeper into Earth?
(13)What happens in Earth’s interior to produce Earth’s magnetic field? Describe the layer where the
magnetic field is produced.
(14)Why are there convection currents in the mantle?
(15)Why are the oldest parts of the ocean floor no older than about 200 million years old?
(16)How do magnetic stripes form on the ocean floor? Why are these stripes significant?
Thinking Critically
(17) Comparing And Contrasting How are oceanic and continental crust alike? How do they differ?
(18) Sequencing Place these terms in correct order so they begin at Earth’s surface and move
toward the center: inner core, asthenosphere, lower mantle, lithosphere, outer core.
(19) Predicting In the diagram below, a plate of oceanic crust is colliding with a plate of continental
crust. What will happen? Why?
(20) Relating Cause And Effect What do many geologists think is the driving force of plate
tectonics? Explain.
(21) Making Judgments Scientists refer to plate tectonics as a theory. What is a theory? How is
plate tectonics a theory? Why isn’t continental drift considered a theory? ( Hint: Refer to the Skills
Handbook for more on theories.)
Math Practice
(22) Calculating A Rate It takes 100,000 years for a plate to move about 14 kilometers. Calculate the
rate of plate motion.
Applying skills
Use the map to answer Questions 23–25.
Geologists think that a new plate boundary is forming in the Indian Ocean. The part of the
plate carrying Australia is twisting away from the part of the plate carrying India.
(23) Interpreting Maps In what direction is the part of the plate carrying Australia moving? In what
direction is the part carrying India moving?
(24) Predicting As India and Australia move in different directions, what type of plate boundary will
form between them?
(25) Inferring What features could occur where the northern part of the Indo-Australian plate is
colliding with the Eurasian plate?
Checking Concepts
(11)What kinds of indirect evidence do geologists use to study the structure of Earth?
(12)How do temperature and pressure change as you go deeper into Earth?
(13)What happens in Earth’s interior to produce Earth’s magnetic field? Describe the layer where the
magnetic field is produced.
(14)Why are there convection currents in the mantle?
(15)Why are the oldest parts of the ocean floor no older than about 200 million years old?
(16)How do magnetic stripes form on the ocean floor? Why are these stripes significant?
Thinking Critically
(17) Comparing And Contrasting How are oceanic and continental crust alike? How do they differ?
(18) Sequencing Place these terms in correct order so they begin at Earth’s surface and move
toward the center: inner core, asthenosphere, lower mantle, lithosphere, outer core.
(19) Predicting In the diagram below, a plate of oceanic crust is colliding with a plate of continental
crust. What will happen? Why?
(20) Relating Cause And Effect What do many geologists think is the driving force of plate
tectonics? Explain.
(21) Making Judgments Scientists refer to plate tectonics as a theory. What is a theory? How is
plate tectonics a theory? Why isn’t continental drift considered a theory? ( Hint: Refer to the Skills
Handbook for more on theories.)
Math Practice
(22) Calculating A Rate It takes 100,000 years for a plate to move about 14 kilometers. Calculate the
rate of plate motion.
Applying skills
Use the map to answer Questions 23–25.
Geologists think that a new plate boundary is forming in the Indian Ocean. The part of the
plate carrying Australia is twisting away from the part of the plate carrying India.
(23) Interpreting Maps In what direction is the part of the plate carrying Australia moving? In what
direction is the part carrying India moving?
(24) Predicting As India and Australia move in different directions, what type of plate boundary will
form between them?
(25) Inferring What features could occur where the northern part of the Indo-Australian plate is
colliding with the Eurasian plate?