Quiz  /  Neptune
  • 1. 
    Neptune is the ______ planet from the Sun.

  • 4th
  • 8th
  • 2nd
  • 1st
  • 2. 
    What type of planet is Neptune?

  • Terrestrial planet
  • Ice giant planet
  • Dwarf planet
  • Gas giant planet
  • 3. 
    Which of the following best describes the surface of Neptune?

  • A thick layer of hydrogen gas
  • Cloudy and hot with lots of volcanoes
  • Cold, rocky, and covered in red dust
  • Barren and rocky with lots of craters
  • 4. 
    Around how big is Neptune's mass when compared to the mass of the Earth?

  • 5.5% of the Earth's mass
  • 11% of the Earth's mass
  • 95 times the Earth's mass
  • 17 times the Earth's mass
  • 5. 
    Around how long is a day on Neptune?

  • 88 Earth days
  • 24.6 hours
  • 9.8 hours
  • 16.1 hours
  • 6. 
    How was Neptune first discovered?

  • Using a space-based telescope
  • Using a land-based telescope
  • With the naked eye thousands of years ago
  • Using mathematics
  • 7. 
    Which of the following best describes the atmosphere on Neptune?

  • Warm and oxygen rich
  • Extremely cold
  • Extremely hot
  • Similar to Earth's atmosphere
  • 8. 
    Neptune was named after what Roman god or goddess?

  • God of the sea
  • God of war
  • God of the sky
  • God of agriculture
  • 9. 
    What is the name of the largest moon orbiting Neptune?

  • Triton
  • Proteus
  • Nereid
  • Larissa
  • 10. 
    Neptune is the ______ planet in the Solar System.

  • Fourth largest
  • Sixth Largest
  • Smallest
  • Second smallest
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