Earth Science: Geology, the Environment, and the Universe

Section 4: Formation of Our Solar System

Formation of Our Solar System

1
What are the three labeled parts of the comet shown in the figure?
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A)ice core, cloud, fan
B)corona, nucleus, end
C)head, cone, tail
D)coma, nucleus, tail
2
The objects that eventually formed planets by colliding and merging are called __________.
A)stars
B)asteroids
C)planetesimals
D)solar nebula
3
Comets are bodies that are __________ that orbit __________.
A)ice and rock, the Sun
B)helium gas, the Sun
C)icy, each planet
D)larger than Earth, Earth
4
Where are most asteroids located?
A)orbiting all planets
B)between Mars and Jupiter
C)outside of Pluto's orbit
D)between Earth and Venus
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