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The Planets

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  • What conditions are believed to be needed for planet need to sustain life?
    Oxygen, water, and a warm/cool enough temperature.
  • Where in the solar system, other than Earth, do scientists believe could currently support life forms?
    Europa, a moon of Jupiter.
  • What does Earth mean in Old English?
    The ground
  • What are the two categories of planets?
    Terrestrial and Jovian
  • Who was Mercury named after?
    Mercurius, a Roman god
  • Why was Mars given its name?
    People associated its red colour with blood and war, so they named it after the Roman god of war.
  • What do we use to detect volcanoes on the surface of Venus?
    Radar
  • What is at the centre of Mercury?
    A huge iron core
  • What do some people suspect about Mars?
    They may have been some primitive life forms in the past.
  • Why was Mercury named after Mercurius?
    Mercurius was a messenger god. He moves around quickly and Mercury moves around the Sun the quickest.
  • Who was Uranus originally going to be named after?
    King George III, who was then the ruling monarch of the British Empire.
  • Why can't we see the surface of Venus?
    It has very thick clouds.
  • Which planet is not named after a god or goddess?
    Earth
  • Which planet has 53 satallites?
    Saturn
  • Why is Mars red?
    Rust in its soil
  • What is at the edge of our Solar System?
    The Oort Cloud, a collection of icy debris.
  • How much wider is Jupiter than Earth?
    11 times
  • Which galaxy do we live in?
    The Milky Galaxy
  • Why was Jupiter given its name?
    Due to its size it was named after the Roman supreme god.
  • Why does Neptune look blue?
    Due to the presence of methane gas.
  • What is the temperature on Mercury during the day and night?
    450°C in day and -180°C at night
  • When was Uranus discovered?
    1781
  • What do the Jovian planets have in common?
    Multiple moons, no solid surface, ring systems and are immense in size.
  • Why is Venus named Venus?
    It is the brightest object in the sky and one of the most beautiful, so it was named after the goddess of love.
  • Who discovered the four largest moons of Jupiter?
    Galileo Galilei, an Italian astronomer, in 1610.
  • What do the Terrestrial planets have in common?
    They are made of rocky material, have solid surfaces, don’t have rings, have few moons and are relatively small.
  • What is Saturn's ring made of?
    Rock and ice
  • Which moon is bigger than Murcury?
    Titan
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