Planet Showdown: Which Planet Is Hotter, Bigger or Faster?
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Planet Showdown: Which Planet Is Hotter, Bigger or Faster?
About this quiz
Planet showdown quiz: 25 battles to find which planet is hotter, bigger, faster, colder or windier. ☄️
Which planet has the shortest day? Which one is closest to Earth on average? On which one does the Sun rise in the west? Pick the winner in each planet battle. Great for family quiz nights, road trips and classrooms.
❓ IN THIS QUIZ
- On average, which planet is closest to Earth?
- On which planet would you weigh the most?
- On which planet does the Sun rise in the west?
- Which planet has a giant hexagon-shaped storm at its pole?
💬 How many did you get right? Tell us your score in the comments. Which planet battle surprised you the most?
How to play
- Read the question and look at the pictures.
- Pick your answer before the timer runs out (or switch the timer off).
- See if you were right and read the fun fact.
Answers and fun facts (spoilers!)
- Planet showdown, round one! Which is biggest?
Earth
Venus is only slightly smaller than Earth. Mars is about half Earth's width. - Which is bigger: our Moon or Pluto?
Our Moon
Pluto is smaller than our Moon! - Which planet takes the longest to spin once?
Venus
Venus takes about 243 Earth days to spin around once! - Which planet has the shortest day?
Jupiter
A day on Jupiter lasts just under 10 hours, even though it's the biggest planet! - Which takes longest to orbit the Sun?
Uranus
A year on Uranus lasts about 84 Earth years! - Which planet has moons: Mercury, Venus or Mars?
Mars
Mars has two tiny moons, Phobos and Deimos. Mercury and Venus have none! - On which planet would you weigh the most?
Jupiter
On Jupiter you'd weigh about 2.5 times as much as on Earth! - On which planet would you weigh the least?
Mars
On Mars you'd weigh only about 38% of your Earth weight! - On average, which planet is closest to Earth?
Mercury
Surprise! Averaged over time, Mercury is the closest planet to Earth, and to every other planet too! - Which planet shines brightest in our night sky?
Venus
Venus is brighter than any star. Only the Sun and Moon outshine it! - Which planet is the densest?
Earth
Earth is the densest planet in the solar system, thanks to its iron core. - Which planet was predicted with math before anyone saw it?
Neptune
Neptune's position was calculated first, then it was spotted in 1846! - Besides Saturn, which of these planets also has rings?
Uranus
All four giant planets have rings. Saturn's are just the brightest! - Which planet has a storm bigger than Earth?
Jupiter
Jupiter's Great Red Spot is a giant storm larger than Earth! - Which planet has the fastest winds?
Neptune
Neptune's winds reach about 2,100 km/h (1,300 mph)! - Which planet races around the Sun the fastest?
Mercury
Mercury zips along at about 47 km every second! - Which planet has the coldest atmosphere?
Uranus
Uranus hits -224 °C, even colder than Neptune, which is farther away! - Which is the biggest moon in the solar system?
Ganymede
Jupiter's moon Ganymede is even bigger than the planet Mercury! - Which moon has a thick atmosphere?
Titan
Titan is the only moon with a thick atmosphere, and it has lakes of liquid methane! - Europa, a moon with an ocean under its ice, belongs to which planet?
Jupiter
Scientists think Europa hides a salty ocean beneath its icy shell! - Which planet has the biggest canyon?
Mars
Valles Marineris on Mars is over 4,000 km long, nearly a quarter of the way around the planet! - On which planet does the Sun rise in the west?
Venus
Venus spins backwards compared with most planets, so the Sun rises in the west! - Which of these is farthest from the Sun?
Uranus
Uranus is the seventh planet, beyond Jupiter and Saturn. - Which is the second biggest planet?
Saturn
Saturn is the second biggest, behind only Jupiter. - Final showdown! Which planet has a giant hexagon-shaped storm at its pole?
Saturn
Saturn's north pole has a six-sided wave pattern, each side about 14,500 km long!