Science prompt
Name a moon of Jupiter — Best Krillion Answers
Facing “Name a moon of Jupiter” in a dive? Here is how to think rare: the best picks, the safe backups, and the crowd defaults to avoid. Every answer below is real and valid — rarity decides the tier.
Best rare pick: Metis — specific, valid, and uncommon enough for Deep Cut or better.
Avoid (Plankton): Europa, Io — correct, but the crowd's first thought.
One in a Krillion — 100 pts
The rarest valid answers — maximum depth.
Metis · Adrastea
Deep Cut — 85 pts
Extremely rare picks most players miss.
Amalthea · Thebe
Rare — 60 pts
Genuinely uncommon — strong scoring.
Himalia · Carme
Schooler — 30 pts
Known but not top-of-mind.
Elara · Pasiphae
Too Clever — 15 pts
A bit too obvious.
Callisto · Ganymede
Plankton — 10 pts
The crowd's default — avoid these.
Europa · Io
How to play this prompt
Strategy notes specific to “Name a moon of Jupiter” — not generic advice.
Science prompts reward precision — the vague version of your answer is common, the exact term is rare.
Lead with Metis. It's the kind of answer that makes other players say 'I knew that!' after the reveal — which is exactly why they didn't type it. Amalthea works the same way if you want a second bullet in the chamber.
Watch out for Europa. It's valid, but validity isn't the game — rarity is. Io has the same problem: everyone knows it, so everyone types it, so it scores like everyone.
The middle of the bank tells the real story: Himalia lands in Rare while Europa sits in Plankton — same prompt, wildly different rarity. That gap is exactly where the points hide.
Build yourself a mental shelf for this prompt: Thebe, Carme, Amalthea. They're different answers, same rarity neighborhood — and that neighborhood is where dives are won.
Rated 4/5 difficulty — only 12 banked answers, so matching the bank is genuinely hard. Precision matters more than speed here.
Related prompts
More Science prompts to train on — same rarity thinking, new answers.