Science & Space Dive — Unlimited Krillion Practice

Elements, bones, moons, stars, missions and the periodic table's far corners.

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Science & Space Dive

Seven Science & Space prompts, 25 seconds each, one answer apiece. The rarer your answer, the deeper you sink.

How it works: you see a prompt, type one answer and press Enter. Obvious answers score little; rare but real ones score big.

Example: "Name a fruit" → Apple +10 is what everyone says, Salak +100 is what almost nobody says.

Everything runs in your browser. Stats stay on this device.

About the Science & Space pack

Science prompts are closed lists with a long tail, which makes them wonderful for rare-answer practice. Everyone knows oxygen, hydrogen and gold. Far fewer people can produce rutherfordium or lanthanum on demand. The periodic table alone gives you a full ladder from Surface to Abyss in a single prompt.

This pack covers chemical elements, bones, constellations, planetary moons, stars, scientists, astronauts, gemstones, rocks, metals, units of measurement, weather terms and space missions. Some prompts reward school memory, while others reward a hobby, like stargazing or rock collecting. Both spellings of aluminium, sulfur and caesium are accepted.

A good strategy is to pick one corner of a category and go deep rather than skim the surface. For moons, name the outer gas giants' small satellites. For gemstones, think beyond the birthstones into collector territory. For bones, recall the hand and the ear. Points come from rarity, so the answers that feel slightly embarrassing to say out loud are often the ones that carry you deepest. Check the full answer list after each prompt to see what you missed and add it to your mental inventory.

This pack currently has 15 prompts and 1,395 accepted answers, all written for this site.

Science & Space prompts you might get

Each dive picks seven of these. The answers stay hidden until you have played.

Name a chemical element
Name a bone in the human body
Name a constellation
Name a moon in our solar system
Name a famous scientist
Name a gemstone
Name a rock or mineral
Name a unit of measurement
Name a programming language
Name a star
Name a space mission, probe or spacecraft
Name a type of cloud or weather phenomenon
Name an organ or part inside the human body
Name an astronaut or cosmonaut
Name a metal or alloy

More packs

Or mix everything in the Unlimited Dive, or try the Endless Descent.