Name ________________________________
MODERN
Class ____ _ _ __
EARTH
DJte __________
SCIENCE
Section 30.1
The Earth's Moon
Choose the one best resPonJe. Write the letter of that choice in the space provided.
1. The earth's first artificial satellite was called:
a. Sputnik 1.
b. Explorer 1.
c. Voyager 1.
d. Apollo 13
2. A long, deep channel on the moon is called a:
a. mare.
c. streak.
b. ray.
d. rille.
3. What are bowl-shaped lunar depressions called?
a. breccia
c. anorthosites
b. craters
d. basalts
4. The outer layer of dust and small rock fragments on the moon is called:
a. maria.
c. rille.
b. umbra.
d. regolith.
S. The moon may have a small liquid core made of:
a. silicon.
c. iron.
b. magnesium.
d. aluminum.
6. During which stage of the moon's development was the surface covered with hot,
molten rock?
a. first
c. third
b. second
d. last
7. The light-colored, coarse-grained rocks from the lunar highlands are called:
a. anorthosites.
b. breccia.
c. basalts.
d. marla.
8. In this diagram, the moon's mantle is the structure
labeled:
a. 1.
c. 3.
b. 2.
d. 4.
3
9. According to the giant-impact hypothesis, the moon was once part of:
a. Mercury.
b. Venus.
c. Earth.
d. Mars.
Read the statement and answer it in tile space provided.
10. Describe the stage of the moon's development that began when its surface cooled.
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Cluzpter 30 111
Name ________________________________
MODERN
Class ______________
EARTH
Date __________
SCIENCE
Section 30.2
Movements of the Moon
Read each statement below. If the statement is troe, write T In the space provided.
If tbe statement is false, write F in the space provided.
1. The center of mass of the earth-moon system follows a smooth orbit around the sun.
2. One side of the moon always faces the earth.
3. The moon passes closest to the earth at apogee.
4. In the umbra, sunlight is partially blocked.
s. Lunar
eclipses are visible from any location on the dark side of the earth.
Choose the one best response. Write the letter of that cboice in the space provided.
6. The orbit of the moon around the earth fonns:
a. a sphere.
b. a cone.
c. a circle.
d. an ellipse.
7. What is the difference, in minutes, in the rising time of the moon each day?
a. ]0
. _:Jj~~~i)1:J.·:- ,"
.. ~""
. ~;..i/.
b. 25
c. 50
d. 90
~1·
"~t(.~:~ Sun
J~~\-
t:~:J~
,,~
~
~-(
-...
\(11
~,
,~:~
, '{J~
-. ,.j,.
·*~~l'¢~t.t."
8. What type of eclipse is pictured in the diagram?
a. total solar eclipse
b. annular eclipse
c. penumbral eclipse
d. lunar eclipse
9. A total solar eclipse lasts no more than seven minutes at any location on earth
because:
a. seven minutes is the time it takes for the moon to pass through the earth's
penumbra.
b. the earth's rotation causes the area under the shadow of the moon to move
rapidly.
c. seven minutes is the time it takes for the moon to pass through the earth's
umbra.
d. the moon's spin causes its shadow to move quickly over the earth.
___
10. The center of mass of the earth-moon system is at a balance point, which is located.:
a. within the earth's interior.
b. less than half the distance from the earth to the moon.
c. within the moon's interior.
d. more than half the distance from the earth to the moon.
112 Chapter 30
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Name _______________________________
MODERN
Date _ _ _ _ _ __
Class _____________
EARTH
SCIENCE
Section 30.3
The Lunar Cycle
Choose the one best response. Write the letter of that choice In the space provided.
1. When only a small part of the moon is visible, the moon may be in its:
a. first-quarter phase.
c. waning-crescent phase.
b. new moon phase.
d. last-quarter phase.
2. Approximately how many days does it take the moon to go through a complete cycle
of phases?
a. 7
c. 27
b. 11
d. 29
3. Systems of measuring the passage of time are called:
B.
phases.
b. calendars.
c. years.
d. sols.
4. Prior to the introduction of the Julian calendar, how many days made up a Roman
year?
B. 106
c. 265
b. 197
d. 304
5. Which diagram below shows the moon in a gibbous phase?
a.
b.
Read eacb question and answer It In the space provided.
6. What is the major source of the Jight that reflects off
the moon?
7. What term is used to describe a decrease in the visible
portion of the moon?
8. What is the time required for the earth to make one
complete rotation on its axis?
9. What are years with an extra day called?
10. What is the name of the proposed calendar that would
add a day at the end of June every four years?
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earli~
In this work.
Chapter 30 113