Bing Solar System Quiz – Planets, Moons and Odd Orbits
The Bing Solar System Quiz compares giant storms, unusual moons and orbital surprises in a quiz with a few twists, including Jupiter's Great Red Spot, Saturn's moon Titan, Venus's backward spin, Uranus's tilt, Pluto and the Kuiper Belt. Planet order is the easy part.
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🎯 Daily Trivia Challenge • 🧠 10 Questions • ⏱️ 150 Seconds
Storms
What is Jupiter's Great Red Spot?
Moons
Which moon of Saturn has a thick atmosphere and lakes of liquid methane?
Spin
Which planet spins in the opposite direction to most others, so the Sun rises in the west?
Tilt
Which planet is tilted so much that it rolls around the Sun on its side?
Heat
Which is the hottest planet in the solar system?
Dwarf
In which year did astronomers reclassify Pluto as a dwarf planet?
Moons
Which moon of Jupiter is the most volcanically active body in the solar system?
Size
What is the largest moon in the solar system?
Region
What is the Kuiper Belt?
Wind
Which planet has the fastest winds measured in the solar system?
Your score
0/10
Scroll down to see the explanation for each question.
Explanations: answer key for all 10 questions
- Q1: What is Jupiter's Great Red Spot?
Answer: A giant storm larger than Earth
The storm has been observed for more than 150 years. It has been shrinking slowly in recent decades.
- Q2: Which moon of Saturn has a thick atmosphere and lakes of liquid methane?
Answer: Titan
Titan is larger than the planet Mercury. NASA's Dragonfly drone is planned to explore it in the 2030s.
- Q3: Which planet spins in the opposite direction to most others, so the Sun rises in the west?
Answer: Venus
Venus spins very slowly backward. A single day on Venus lasts longer than its whole year around the Sun.
- Q4: Which planet is tilted so much that it rolls around the Sun on its side?
Answer: Uranus
Uranus is tilted about 98 degrees. A giant collision long ago may have knocked it over.
- Q5: Which is the hottest planet in the solar system?
Answer: Venus
Venus's thick carbon dioxide atmosphere traps heat. Its surface is hot enough to melt lead.
- Q6: In which year did astronomers reclassify Pluto as a dwarf planet?
Answer: 2006
The International Astronomical Union created the new category in 2006. Pluto had not cleared its orbit of other objects.
- Q7: Which moon of Jupiter is the most volcanically active body in the solar system?
Answer: Io
Jupiter's gravity squeezes Io and heats its interior. It has hundreds of active volcanoes, some shooting lava high into space.
- Q8: What is the largest moon in the solar system?
Answer: Ganymede
Jupiter's Ganymede is larger than Mercury. It is the only moon known to have its own magnetic field.
- Q9: What is the Kuiper Belt?
Answer: An icy region beyond Neptune
Pluto and many other icy bodies orbit there. New Horizons flew past the Kuiper Belt object Arrokoth in 2019.
- Q10: Which planet has the fastest winds measured in the solar system?
Answer: Neptune
Winds on Neptune can reach more than 2,000 kilometers per hour. It is also the farthest known planet from the Sun.
Bing Solar System Quiz – Planets, Moons and Odd Orbits
The solar system has eight planets, five official dwarf planets and hundreds of moons, all held together by the Sun's gravity. Most people can list the planets in order, but each one has surprises that make it unique.
Some planets break the rules. Venus spins backward and is hotter than Mercury, even though it is farther from the Sun. Uranus is tipped on its side, and Neptune has the fastest winds ever measured. Jupiter's Great Red Spot is a storm larger than Earth.
Moons can be just as interesting as planets. Ganymede is the largest moon in the solar system, Io is covered in active volcanoes and Saturn's moon Titan has a thick atmosphere with lakes of liquid methane.
Beyond Neptune lies the Kuiper Belt, an icy region that includes Pluto. Pluto was reclassified as a dwarf planet in 2006, but the New Horizons flyby in 2015 showed it is a complex world with mountains of ice.
You have 150 seconds to answer ten questions in the Bing Solar System Quiz. Every answer comes with a quick explanation, which makes the quiz a good way to learn as well as to test yourself. It works well on a phone, and it is also fun to play aloud with friends or family, taking turns to answer. Many players find that the second attempt goes much better, because the explanations help the facts stick. Share the quiz with a friend and compare your results.
Play the quiz and see whether the solar system's twists can catch you out.
What This Quiz Teaches
- The planets and their quirks
- Giant storms
- Unusual moons
- Dwarf planets
- The Kuiper Belt
- Spin and tilt
Quick Facts
- The Sun holds more than 99 percent of the solar system's mass.
- Saturn could float in water if there were a big enough bathtub.
- Mercury has almost no atmosphere.
- Jupiter is more than twice as massive as all the other planets combined.
- Ceres is the largest object in the asteroid belt.
- Neptune was found by mathematical prediction.
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