Solar System Exploration Quiz
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Questions and Answers

Which planet is closest to the sun?

  • Mercury (correct)
  • Saturn
  • Earth
  • Mars

    • How many confirmed moons does Jupiter have according to NASA?

  • 79
  • 3,743
  • 53 (correct)
  • 0

    • What are celestial bodies that are made up of metal, rock, or a combination of the two, and orbit the sun?

  • Moons
  • Comets
  • Asteroids (correct)
  • Meteoroids

    • What is the term used for a meteoroid that survives the atmosphere and hits the ground?

    <p>Meteorite</p> Signup and view all the answers

    Which type of planets do not have a solid surface and are comprised primarily of gases?

    <p>Jovian planets</p> Signup and view all the answers

    Which planet is thought to have no moons?

    <p>Venus</p> Signup and view all the answers

    What is the mnemonic device for remembering the correct order of the planets?

    <p>My Very Educated Mother Just Served Us Nachos</p> Signup and view all the answers

    What are celestial bodies that float through space and are detailed later in this lesson?

    <p>Meteoroids</p> Signup and view all the answers

    What is a key criterion for a celestial body to be designated as a planet?

    <p>It must orbit the sun and have a spherical shape due to gravity.</p> Signup and view all the answers

    What led to the controversy surrounding the number of planets in the solar system in 2006?

    <p>The reclassification of Pluto from a planet to a dwarf planet.</p> Signup and view all the answers

    What celestial bodies are part of Earth's solar system?

    <p>Moons, asteroids, comets, and meteoroids.</p> Signup and view all the answers

    What caused the controversy surrounding the number of planets in the solar system?

    <p>The reclassification of Pluto from a planet to a dwarf planet.</p> Signup and view all the answers

    What is the primary reason for the evolving definition of a planet?

    <p>Scientists' increasing understanding of the solar system, galaxy, and universe.</p> Signup and view all the answers

    What distinguishes a celestial body as a planet in terms of its orbit?

    <p>Having a clear orbit around the sun and being larger than most celestial bodies in its orbital path.</p> Signup and view all the answers

    What is the defining characteristic of a celestial body to be considered a planet?

    <p>Having a clear orbit around the sun and a significant gravitational pull shaping it into a sphere.</p> Signup and view all the answers

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