Planets in order from the Sun

What you’ll learn in this solar system quiz

From Mercury to Neptune, this quiz builds your memory of the planets in order from the Sun and reinforces which worlds are closer in and which are farther out.

Each question is multiple-choice with 4 options and no timer, so kids can think carefully, talk it through, or learn as they go.

Difficulty and question count (how it works)

You can choose your question count before starting, which is great for quick practice or a longer study session. Difficulty can be set to easy, hard, or mixed; mixed mode balances simpler recall questions with trickier ones that test close details.

Common mistakes to watch for

A lot of players mix up the middle planets, especially Jupiter vs. Saturn placement and Uranus vs. Neptune at the far end. Another common pitfall is forgetting that Earth is third from the Sun, right after Venus.

• Remember: Mercury is closest, Neptune is farthest (in the 8-planet model)
• Don’t swap Uranus and Neptune; keep their order steady
• Watch the “middle” run: Mars, Jupiter, Saturn often gets scrambled
• Use patterns: inner rocky planets first, then gas/ice giants
• If a question feels tricky, slow down—there’s no timer

Tips to score higher

Try saying the planet order out loud or using a mnemonic, then test yourself again with a different difficulty setting. Replaying with a longer question count helps turn the sequence into long-term memory.