Study

Our Solar System

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  • Which planet is the smallest?
    Mercury
  • Which planet is Earth’s twin in size and mass?
    Venus
  • Which planet is the largest?
    Jupiter
  • Which planet has a large red spot?
    Jupiter
  • Which planet is made up of 2/3 water?
    Earth
  • Which planet is the farthest away from the sun?
    Neptune
  • What is the force that governs all planetary movement in the solar system?
    gravity
  • Which word means the whole cosmic system of matter and energy of which Earth is a part?
    universe
  • Which planet appears blue?
    Neptune
  • What is the largest object in our solar system?
    the Sun
  • What is the collection of eight planets and their moons in orbit around the sun, together with smaller bodies in the form of asteroids, meteoroids, and comets called?
    the solar system
  • Which planet has rings made of dust and ice?
    Saturn
  • Which planet is 141.6 million miles from the sun?
    Mars
  • Which planet is closest to the sun?
    Mercury
  • Which 2 planets have the most moons?
    Jupiter and Saturn
  • What is a celestial body moving in an elliptical orbit around a star?
    a planet
  • Name the 4 inner planets.
    Mercury, Venus, Earth, Mars
  • Name the 4 outer planets.
    Jupiter, Saturn, Uranus, Neptune
  • What is a system of millions or billions of stars, together with gas and dust, held together by gravitational attraction?
    a galaxy
  • Which planet appears red?
    Mars
  • What is the 6th planet from the sun?
    Saturn
  • Which 2 planets have no moons?
    Mercury and Venus
  • How do planets move?
    They orbit (revolve) clockwise around the sun.