Scale Quiz — Bigger or Smaller?

Test your knowledge of the size of things in the universe. Each round shows you two objects from the scale of the universe — your job is to pick the larger one. With 10 rounds per game, instant feedback on each answer, and a shareable score at the end.

How It Works

  • Two objects are shown side by side — pick the larger one
  • Objects are drawn from across the scale of the universe: quarks, atoms, cells, animals, planets, stars, galaxies, and more
  • After each answer, the actual sizes and the ratio between them are revealed
  • After 10 rounds, see your full score and share your result

Play the Scale Quiz