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Terrestrial Planets

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6th Grade Science Solar System unit quiz on the Terrestrial Planets

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Questions 10

Answers

1
Which terrestrial planet besides Earth has at least one moon?
Mercury
Venus
Mars
Earth
2
Which of the following statements best describes the characteristics of terrestrial planets?
large, planetary rings; many moons
made up of hydrogen and helium, small, close to sun
rocky cores, close to sun, surface craters
small, dense, rocky surfaces
3
Venus's rotation is retrograde. This means that Venus spins...
clockwise
counter clockwise
4
What are the four terrestrial planets?
Mercury, Venus, Earth, Mars
Jupiter, Saturn, Uranus, Neptune
Mercury, Venus, Mars, Neptune
Mercury, Earth, Jupiter, Mars
5
How long is one day on Mercury? (in Earth days)
79 Earth days
29 Earth days
1 Earth day
59 Earth days
6
Mercury has no axial tilt, like Earth does. How does the lack of tilt affect Mercury's seasons?
Mercury has two seasons.
Mercury has longer seasons.
Mercury has no seasons.
Mercury has shorter seasons.
7
Which of these is the main reason Venus is the hottest planet in our solar system?
The rotation affects how sun's rays enter the atmosphere.
The atmosphere reflects light back into space.
The atmosphere radiates heat back to the surface.
The surface absorbs solar radiation.
8
Which terrestrial planets have diameters that are nearly equal in size?
Mars and Mercury
Mars and Venus
Earth and Mars
Earth and Venus
9
Which terrestrial planet has the highest average temperature?
Mars
Venus
Earth
Mercury
10
What does an astronomical unit equal? (There are two correct answers!)
The distance between the sun and Earth.
Approximately 120 million miles.
Approximately 150 million kilometers.
The distance between the sun and Mercury.