Download layers-of-the-earth-d-rl-2016

Name ______________________________ Class ___________________ Date __________________
Skills Worksheet
Standard S6E5 a. (pages 192-197)
THE PHYSICAL STRUCTURE OF THE EARTH
Match the correct description with the correct term. Write the letter in the space
provided.
_____ 1. the outermost, rigid rocky layer of the Earth
(Crust and upper mantle)
_____ 2. a layer of slowly flowing rock in the mantle
(where convection currents occur)
a.
b.
c.
d.
e.
asthenosphere
lithosphere
mesosphere
outer core
inner core
_____ 3. the liquid layer of the core (made of iron and
nickel)
_____ 4. the solid layer of the core (made of iron and
some nickel)
_____ 5. the strong rocky, lower part of the mantle
TECTONIC PLATES
_____ 6. Large pieces of the lithosphere that move around on the asthenosphere
are called
a. mantle pieces.
b. crust pieces.
c. tectonic plates.
d. puzzle pieces.
7. Why are tectonic plates like the pieces of a jigsaw puzzle?
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8. What are the two kinds of crust that a tectonic plate may contain?
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Original content Copyright © by Holt, Rinehart and Winston. Additions and changes to the original content are the responsibility of the instructor.
Holt Science and Technology
1
Plate Tectonics
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Directed Reading A continued
9. List three ways in which tectonic plates floating on the asthenosphere are
similar to ice cubes filling a punch bowl.
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MAPPING THE EARTH’S INTERIOR
_____ 10. What do scientists use to study Earth’s interior?
a. sea-floor spreading rates
b. magnetic reversals
c. global positioning system
d. seismic waves
_____ 11. What are seismic waves?
a. movements in the outer core
b. pictures of the Earth’s interior
c. vibrations from an earthquake
d. vibrations from a seismograph
12. Will a seismic wave traveling through a solid go faster or slower than a
seismic wave traveling through liquid? Explain your answer.
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Compare and Contrast the Lithosphere, Asthenosphere, and Mesosphere:
Original content Copyright © by Holt, Rinehart and Winston. Additions and changes to the original content are the responsibility of the instructor.
Holt Science and Technology
2
Plate Tectonics