World Book Trivia Quiz For Kids--3/4--planets

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  • 1/10 Questions

    Which of these is not a planet?

    • Mercury
    • Neptune
    • Pluto
    • Earth
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About This Quiz


The World Book Encyclopedia Weekly Trivia Challenge tests your knowledge on a variety of subjects. Check back every week for a new quiz.

World Book Trivia Quiz For Kids--3/4--planets - Quiz

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  • 2. 

    All of the planets put together are as big as the sun.

    • True

    • False

    Correct Answer
    A. False
    Explanation
    The sun contains about 99.8% of all the matter in the solar system.

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  • 3. 

    Mars has how many moons?

    • 1

    • 2

    • 3

    • 4

    Correct Answer
    A. 2
    Explanation
    Mars has two moons, Deimos and Phobos.

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  • 4. 

    Where can you find the fastest winds in the solar system?

    • Neptune

    • Earth

    • Venus

    • Jupiter

    Correct Answer
    A. Neptune
    Explanation
    Winds blow on Neptune at speeds up to about 900 miles (1,450 kilometers) per hour. Unlike the winds of Jupiter, Saturn, and Uranus, Neptune’s winds tend to blow in the opposite direction of the planet’s rotation.

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  • 5. 

    How many planets in the solar system have a moon?

    • 1

    • 2

    • 4

    • 6

    Correct Answer
    A. 6
  • 6. 

    What is the third largest planet?

    • Jupiter

    • Venus

    • Uranus

    • Earth

    Correct Answer
    A. Uranus
    Explanation
    Uranus is smaller than both Jupiter and Saturn, but a tiny bit larger than Neptune.

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  • 7. 

    How many moons in the solar system are larger than the planet Mercury?

    • 0

    • 1

    • 2

    • 5

    Correct Answer
    A. 2
    Explanation
    Both the largest moon of Jupiter, Ganymede, and the largest moon of Saturn, Titan, are larger than Mercury.

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  • 8. 

    What planet passes the closest to Earth?

    • Venus

    • Mars

    • Mercury

    • The moon

    Correct Answer
    A. Venus
    Explanation
    Venus is the planet that passes the closest to Earth. It is about 24 million miles (40 million kilometers) at its closest.

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  • 9. 

    Which is the largest moon in the solar system?

    • Earth's moon

    • Ganymede

    • Titan

    • Europa

    Correct Answer
    A. Ganymede
    Explanation
    Jupiter's largest moon is also the largest moon in the solar system

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  • 10. 

    All planets orbit the sun.

    • True

    • False

    Correct Answer
    A. False
    Explanation
    False. Scientists began finding planets around other stars in the 1990's.

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  • Current Version
  • Mar 16, 2022
    Quiz Edited by
    ProProfs Editorial Team
  • Feb 12, 2013
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