Solar System Quiz
1 / 15Journey through our cosmic neighborhood! Test your recall of planets, moons, and other objects in our solar system.
15 quick questionsNo sign-upFree to playTap an answer below to begin ↓
Which planet is closest to the Sun?
About Solar System Quiz
Give your memory a workout with Solar System Quiz: 15 multiple-choice questions aimed at mixed difficulty, free to play right in your browser. Journey through our cosmic neighborhood! Test your recall of planets, moons, and other objects in our solar system. Expect to spend about 7 minutes; every question comes with an explanation, so you learn something even when you miss.
A few sample questions
1. Which planet is closest to the Sun?
Answer: Mercury
2. What is the Great Red Spot on Jupiter?
Answer: A giant storm
3. Which planet was reclassified as a dwarf planet in 2006?
Answer: Pluto
4. What are Saturn's rings primarily made of?
Answer: Ice and rock particles
5. Which moon of Saturn has a thick atmosphere and lakes of liquid methane?
Answer: Titan
Frequently asked questions
Will I lose my progress if I close the page?
Your overall progress — XP, streaks, and badges — is saved in your browser automatically. A quiz that's underway restarts if you leave mid-game, but at about 7 minutes, Solar System Quiz fits comfortably in one sitting.
How many questions are in Solar System Quiz?
Solar System Quiz has 15 multiple-choice questions. Each one has four answer options and an explanation that appears after you answer, so you learn something even when you miss.
Is Solar System Quiz free to play?
Yes. The entire SeniorBrainGames catalog — including Solar System Quiz — is free, with no sign-up required, no time limits, and no ads on top of the game. It also works offline once the page has loaded once.
How long does Solar System Quiz take?
Most players finish Solar System Quiz in about 7 minutes. You can pause between questions, replay it as often as you like, and there is no penalty for taking your time — answers are explained after you submit them.
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