KrillionGame
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7 prompts · 25 seconds each · rare answers sink deeper

Dive as often as you like.

Find one answer from each independent, fixed set. The rarer the answer, the farther down you travel.

Your first timer starts only after you begin.

Signal

Preparing the next prompt…

▼ rarer answers sink deeper ▼
25
Practice question memory

Unseen prompts come first. This memory is shared by mixed, Geography and Science Practice. Clearing it resets seen prompts across all Practice modes, keeping every saved round and Daily progress.

Your dive logOn this device ↗

Small discoveries add up

Your progress, one dive at a time.

Your recent dives and personal bests, saved on this device.

0 completed dives

0 day UTC Daily streak

Recent dives

Latest 30 rounds, newest first. Totals and personal bests use all retained records. Scores are out of 700; each mode has its own best.

Finish a seven-question dive to start your log.

    About your log and Daily streak

    Completed rounds stay in this browser until you clear this log. It starts with rounds you finish using this feature; older completed saves are not imported. No account or device sync.

    A streak counts Daily sets finished on their own UTC date. Yesterday’s streak stays active while you still have today to play. Finishing an older set counts as a dive, but does not extend the streak.

    Topic practice / Look closer

    Science and space trivia practice.

    Look from a wrist bone to a distant moon. Connect names to shapes, processes and discoveries in seven timed science and space prompts.

    45 prompts in this topic7 × 25s per round10 discovery cards

    Inside this collection

    From living systems to distant worlds

    This topic combines our Science and Space collections: the human body, ecosystems, weather, physics, astronomical objects and exploration. Standards and other categories stay in mixed Practice.

    Unseen questions come first. When they run short, familiar questions return for review. Every round uses our independently edited answer sets and fixed point tiers, not live player frequencies.

    A route to recall

    Find the structure behind the names

    1. 01

      Think in groups

      Pair related particles, follow a sequence or picture a body structure. Connections give you more than one route to a valid answer.

    2. 02

      Notice the cutoff

      A mission date or a named chart fixes the collection. A later discovery can be real and still fall outside that particular prompt.

    3. 03

      Name the right kind of thing

      Units are different from quantities; periods are different from epochs. Read the requested category before reaching for a familiar term.

    Take one discovery with you

    There is more to a question than its score.

    10 prompts in this collection have a short discovery card. After answering, skipping or timing out, open the feedback details to read it and follow its source. You can revisit it in the completed round’s review. Other prompts still show their full accepted set and reference.

    Read the science answer-set guide

    Keep your place while you explore.

    Will switching topics replace my round?

    No. Geography, Science, mixed Practice and Daily each keep a separate current round in this browser. A question timer already running continues while you are away, including when you change pages or refresh.

    Do topics share question memory?

    Yes. A prompt you start here is also marked seen in mixed Practice. Clearing Practice question memory resets that record for every practice topic, but keeps all current rounds and Daily progress.

    Can I play again after all questions are seen?

    Yes. You can replay as often as you like; the finite question bank then supplies familiar prompts for review. A shared result links to this topic, but does not recreate the same random round for another player.