Q. Which planets are called the outer planets?
Ans: Jupiter, Saturn, Uranus, and Neptune
Q. Why are they called outer planets?
Ans: They lie beyond the asteroid belt
Q. Which is the largest planet in the Solar System?
Ans: Jupiter
Q. Which is the second-largest planet in the Solar System?
Ans: Saturn
Q. Which outer planet is famous for its beautiful ring system?
Ans: Saturn
Q. Which outer planets are called gas giants?
Ans: Jupiter and Saturn
Q. Which outer planets are called ice giants?
Ans: Uranus and Neptune
Q. Which outer planet is known as the “Blue Planet” among outer planets?
Ans: Neptune
Q. Which outer planet rotates on its side?
Ans: Uranus
Q. Which outer planet is farthest from the Sun?
Ans: Neptune
Q. Which outer planet is closest to the Sun?
Ans: Jupiter
Q. Which outer planet has the Great Red Spot?
Ans: Jupiter
Q. What is the Great Red Spot on Jupiter?
Ans: A giant storm
Q. Which outer planet has the shortest day?
Ans: Jupiter
Q. Which outer planet takes the longest time to orbit the Sun?
Ans: Neptune
Q. Which planet is known as the “Lord of the Rings”?
Ans: Saturn
Q. Which outer planet is less dense than water?
Ans: Saturn
Q. Which outer planet has the strongest winds in the Solar System?
Ans: Neptune
Q. Which outer planet appears pale blue-green due to methane?
Ans: Uranus
Q. Which outer planet appears deep blue due to methane?
Ans: Neptune
Q. Which is the biggest outer planet?
Ans: Jupiter
Q. Jupiter is mainly made of what?
Ans: Hydrogen and helium
Q. Which famous moon of Jupiter is the largest moon in the Solar System?
Ans: Ganymede
Q. Which moon of Jupiter is known for volcanic activity?
Ans: Io
Q. Which moon of Jupiter is believed to have a subsurface ocean?
Ans: Europa
Q. Which moon of Jupiter is heavily cratered and icy?
Ans: Callisto
Q. What are Jupiter’s four largest moons called?
Ans: The Galilean moons
Q. Who discovered Jupiter’s four largest moons?
Ans: Galileo Galilei
Q. Which outer planet has the strongest magnetic field?
Ans: Jupiter
Q. Saturn is mainly made of what?
Ans: Hydrogen and helium
Q. Which outer planet has the most spectacular ring system?
Ans: Saturn
Q. What are Saturn’s rings mainly made of?
Ans: Ice and rock particles
Q. Which moon of Saturn is the largest?
Ans: Titan
Q. Which moon of Saturn has a thick atmosphere?
Ans: Titan
Q. Which planet is called the least dense planet?
Ans: Saturn
Q. Saturn’s density is so low that it could theoretically do what?
Ans: Float in water
Q. Which spacecraft studied Saturn in detail?
Ans: Cassini
Q. Which moon did the Huygens probe land on?
Ans: Titan
Q. Which planet was discovered by William Herschel in 1781?
Ans: Uranus
Q. Why is Uranus unique in its rotation?
Ans: It rotates at an extreme tilt
Q. Uranus rotates in which unusual way?
Ans: On its side
Q. Uranus is mainly made of what besides hydrogen and helium?
Ans: Water, ammonia, and methane ices
Q. Which planet was discovered through mathematical prediction?
Ans: Neptune
Q. Neptune is named after the Roman god of what?
Ans: The sea
Q. Which is the largest moon of Neptune?
Ans: Triton
Q. Triton is unusual because it orbits Neptune in what way?
Ans: In a retrograde orbit
Q. Which spacecraft flew past Neptune in 1989?
Ans: Voyager 2