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Name ______________________________ Class ___________________ Date __________________
Skills Worksheet
Directed Reading B
Section: Inside the Earth
Circle the letter of the best answer for each question.
1. What is the Earth made of?
a. several layers
b. hollow space
c. solid rock
d. one layer
THE COMPOSITION OF THE EARTH
Read the description. Then, draw a line from the dot next to each
description to the matching word.
2. substance made of two or
more elements
3. thinner, outer layer of Earth
4. layer between the crust and
core
5. layer made of the heaviest
elements
PHYSICAL STRUCTURE OF
THE EARTH
6. number of Earth’s physical
layers
7. layer of the Earth made of
crust and upper mantle
8. part of the mantle made of
solid rock that flows slowly
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a. compound
b. core
c. crust
d. mantle
a. lithosphere
b. asthenosphere
c. five
Name ______________________________ Class ___________________ Date __________________
Directed Reading B continued
Read the description. Then, draw a line from the dot next to each
description to the matching word.
9. strong, lower part of the
mantle
10. liquid layer under the mantle
11. solid center of Earth
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a. outer core
b. mesosphere
c. inner core
TECTONIC PLATES
Circle the letter of the best answer for the question.
12. What are large pieces of lithosphere that move on top of the asthenosphere
called?
a. mantle pieces
b. crust plates
c. tectonic plates
d. puzzle pieces
A Giant Jigsaw Puzzle
13. How do tectonic plates fit together?
a. like a layer cake
b. like a jigsaw puzzle
c. like a stack of books
d. like a model car
A Tectonic Plate Close-Up
14. Which of the following is the thickest part of the South American plate?
a. the continental crust
b. the oceanic crust
c. the mantle
d. the mid-Atlantic Ocean
Name ______________________________ Class ___________________ Date __________________
Directed Reading B continued
Like Ice Cubes in a Bowl of Punch
Circle the letter of the best answer for the question.
15. How are tectonic plates like ice cubes in a bowl of punch?
a. Tectonic plates move and touch each other.
b. Tectonic plates melt and become liquid.
c. Tectonic plates sink and disappear from the surface.
d. Tectonic plates freeze and become harder.
MAPPING THE EARTH’S INTERIOR
16. What causes seismic waves?
a. winds
b. an earthquake
c. magnetic reversal
d. rain
17. What can scientists find out about the Earth with a seismograph?
a. Earth’s density and thickness
b. Earth’s age
c. Earth’s atmosphere
d. Earth’s temperature
18. Why are tectonic plates like the pieces of a jigsaw puzzle?
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19. What are the two kinds of crust that a tectonic plate may contain?
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Name ______________________________ Class ___________________ Date __________________
Directed Reading A continued
20. 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
_____ 21. What do scientists use to study Earth’s interior?
a. sea-floor spreading rates
b. magnetic reversals
c. global positioning system
d. seismic waves
_____ 22. 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
23. 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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