Download Chapter 10: Plate Tectonics

Chapter
18. Concept Mapping Make an events chain
concept map that describes seafloor spreading along a divergent plate boundary.
Choose from the following phrases: magma
cools to form new seafloor, convection currents circulate hot material along divergent
boundary, and older seafloor is forced apart.
10
15 Assessment
TAKS Practice
Ms. Fernandez was leading a class
discussion on plate tectonics and Earth’s
interior. TEKS 8.14 A
Study the diagram below and then
answer the following questions.
Convection currents circulate hot
material along divergent boundary.
A
Older seafloor is
forced apart.
Lithosphere
B
Mantle
Magma rises
to the seafloor.
Magma cools to
form new seafloor.
19. Observe and Infer In the MiniLab Modeling Convection Currents, you observed
convection currents produced in water as it
was heated. Repeat the experiment, placing
sequins, pieces of wood, or pieces of rubber
bands into the water. How do their movements support your observations and inferences from the MiniLab?
TECHNOLOGY
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Glencoe Science CD-ROM for additional
chapter assessment.
Outer core
Inner core
1. Suppose that the arrows in the diagram
represent patterns of convection in
Earth’s mantle. Which type of plate
boundary is most likely to form along
the region labeled “A”?
A) transform
B) reverse
C) convergent
D) divergent
2. Which statement is true of the region
marked “B” on the diagram?
F) Plates separate and slip past one
another sideways.
G) Plates diverge and volcanoes form.
H) Plates converge and volcanoes
form.
J) Plates collapse and form a strikeslip boundary.
CHAPTER ASSESSMENT
301