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Inventors & Inventions
Mind & Trivia · Classic

Great Discoveries

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Use the arrow keys to move between letters. Press Enter or Space on the first letter of a word, then again on the last letter. Press Escape to cancel.

A few of the words

RADIUM
Marie Curie discovered radium in 1898, making her the first person to win Nobel Prizes in two different sciences, Physics and Chemistry.Find this word in the grid to read its note.
PENICILLIN
Alexander Fleming noticed in 1928 that a stray mold was dissolving the bacteria in his petri dish, one of the most celebrated accidental observations in science.Find this word in the grid to read its note.
XRAY
Wilhelm Röntgen produced the first X-ray image in 1895, capturing a ghostly picture of his wife's hand, bones and all, that astonished the world.Find this word in the grid to read its note.
DARWIN
Charles Darwin spent more than two decades refining his observations before publishing his theory of evolution in 1859, one of the most consequential ideas in the history of science.Find this word in the grid to read its note.

armchairpuzzles.com · free large-print word searches

great discoveries word search

Great Discoveries: a free online word search

Great Discoveries word search, free to play and packed with the inventions that rewired how we live, from penicillin to the printing press.

About Great Discoveries

Some discoveries arrived with a flash of insight, an apple falling, a mold spreading across a petri dish, a glowing tube casting shadows on the wall. Others were the reward of years of patient, meticulous work: heating and cooling, peering through lenses, filling notebook after notebook by lamplight. Together they form the great chain of human curiosity, each breakthrough opening the door to the next, and the next, and the next.

How to play

  1. 1
    Find a word.Tap its first letter, then tap along to its last. The trail fills in and finishes itself when it spells a word. Or press the first letter and drag.
  2. 2
    Words run in straight lines.Across and down, and on the harder difficulties diagonally and backwards.
  3. 3
    It marks itself.Each word you find takes on its own soft colour on the grid and is crossed off the list.
  4. 4
    Choose a difficulty.Relaxed, Classic or Challenging set those directions and how much the word list helps, never the grid size. Tap the A buttons at the top to enlarge the letters, or pinch the grid.
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