The Moon - Structure And Formation Test
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3Astronomy
Name ____________KEY___________
The Moon – Structure and Formation Test -- Study Guide
1. Locate and label the following features on the Moon map below.
a. Sea of Serenity
Mare Imbrium
b. Sea of Tranquility
c. Sea of Crisis
d. Apollo 11 Landing Site
e. Copernicus Crater
Kepler Crater
f. Tycho Crater
g. Aristarchus Crater
CHECK YOUR NOTES!
Impact Craters
2. What 3 factors determine the size and shape of a crater?
Size, mass, speed and angle of falling object
3. What are some differences between an impact crater and a volcanic caldera? Hint: what
minerals are found nearby.
Cozite (melted glass) is found near impact craters. Volcanic calderas are formed by a
sinking of the ground under a volcano. Impact depressions are blasted out.
4. What four processes shape and change landforms on planetary/lunar surfaces? Briefly
describe each.
Volcanism (melted lava flowing above ground); tectonism (shifting of
ground); degradation (erosion by wind, water); and impact cratering (collisions with
other celestial bodies)
True/False
5. _T_ The Earth and Moon both received the same number of impact craters in their early
history.
6. _F_ Impact craters are things of the past and no longer pose a threat.
(Still a major threat)
7. _T_ Large craters (greater than12 miles in diameter) may have a central mountain peak.
8. _T_ The maria are old lava beds.
9. _F_ The Moon has mountain ranges formed by tectonics.
(series of impacts)
10._T_ Most of the lunar craters were formed within the first 1/2 billion years of its formation.
11._T_ Younger craters have intact ray systems.
12._F_ The moon’s gravity is 1/4 that of Earth.
(1/6)
13._F_ Six people have walked on the moon.
(6 missions, 12 people)
14._T_ A meteorite can carve a crater 10 times its own diameter.
15._F_ Rays are found only close to the crater.
16._F_ The moon once had active volcanoes.
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