Georgia Science Grade 6

Chapter 24: The Solar System

CRCT Practice

1
What is shown in the photo?
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A)asteroids
B)comets
C)meteors
D)meteorites
2
Which is the eighth planet from the Sun?
A)Earth
B)Mars
C)Jupiter
D)Neptune
3
Which is Pluto's largest moon?
A)Hydra
B)Nix
C)Charon
D)Triton
4
Between which two planets' orbits does the asteroid belt occur?
A)Mercury and Venus
B)Earth and Mars
C)Uranus and Neptune
D)Mars and Jupiter
5
Who discovered that planets have elliptical orbits?
A)Galileo Galilei
B)Johannes Kepler
C)Albert Einstein
D)Nicholas Copernicus
6
Which of the following answers is a good estimate for the diameter of Mars?
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A)23,122 km
B)6,794 km
C)1,348 km
D)12,583 km
7
Which object's gravity holds the planets in their orbits?
A)Gaspra
B)Earth
C)Mercury
D)the Sun
8
Which of the following occurs in a cycle?
A)appearance of Halley's comet
B)condensation of a nebula
C)formation of a crater
D)formation of a planet
9
Which planet likely will be visited by humans in the future?
A)Jupiter
B)Venus
C)Mars
D)Neptune
10
What is the approximate range of these temperature values?
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A)90° C
B)60° C
C)50° C
D)100° C
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