Solar System
  • 1. Which planet is smallest?
A) Mercury
B) Venus
C) Mars
D) Uranus
  • 2. Which planet is the largest?
A) Sun
B) Saturn
C) Jupiter
D) Neptune
  • 3. Which planet(s) have rings?
A) Saturn
B) All of the listed ones
C) Jupiter
D) Neptune
  • 4. Name the order of the planets
A) Mercury, Venus, Earth, Mars, Jupiter, Saturn, Uranus and Neptune
B) Mercury, Venus, Earth, Mars, Jupiter, Saturn, Neptune, Uranus
C) Mercury, Venus, Earth, Mars, Saturn, Jupiter, Uranus, Neptune
D) Mercury, Venus, Earth, Mars, Saturn, Jupiter, Neptune, Uranus
  • 5. Between which two planets is the asteroids located?
A) Mars and Jupiter
B) Jupiter and Saturn
C) Venus and Earth
D) Earth and Mars
  • 6. Which planet has the most satellites?
A) Jupiter
B) Saturn
C) Earth
D) Neptune
  • 7. Which planet is the closest to Earth?
A) Mars
B) Mercury
C) Venus
D) Moon
  • 8. Which planet is farthest from Earth?
A) Neptune
B) Venus
C) Uranus
D) Mercury
  • 9. Which planet has a giant red spot?
A) Mars
B) Saturn
C) Jupiter
D) Venus
  • 10. Why is Earth unique in the solar system?
A) It is closest to the sun
B) It has a tilt to its axis
C) It has volcanoes
D) It has life
  • 11. What causes a comet's tail?
A) The asteroids
B) The gravity of planets
C) Solar wind
D) Astronomers don't know
  • 12. Which planet is nick-named the morning or evening star?
A) Earth
B) Mars
C) Moon
D) Venus
  • 13. Which "inner planet" (rocky/terrestrial) planet is furthest from the sun?
A) Mars
B) Earth
C) Uranus
D) Neptune
  • 14. Which "Outer Planet" (gas giant) is closest to the sun?
A) Jupiter
B) Saturn
C) Mars
D) Mercury
  • 15. What is unique about a comet's orbit?
A) It's highly eliptical
B) It travels in the opposite direction around the sun
C) They don't orbit
D) It's circular
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