Biology Word Search

Hard18x18 Grid14 Words

Find all hidden words in this hard science word search puzzle featuring Biology. Challenge yourself to locate 14 words hidden in the 18x18 grid.

About Biology

Biology is the study of living organisms, from single-celled microbes to complex ecosystems.

All known living organisms are built from cells, the basic unit of life.
DNA's double-helix structure was described by Watson and Crick in 1953, building on earlier research.
Charles Darwin's theory of evolution by natural selection was published in 1859.
Biology spans scales from molecular genetics to whole-planet ecology.

This hard science word search contains 14 hidden words. Find them all horizontally, vertically, and diagonally — including backward placements.

CELLDNARNAPROTEINENZYMEGENECHROMOSOMEMITOSISMEIOSISORGANISMSPECIESEVOLUTIONECOLOGYHABITAT

1Look at the 14 words listed in the word panel on the right side of the puzzle.
2Click or tap the first letter of a word in the grid, then drag to the last letter.
3Words can be hidden horizontally, vertically, and diagonally — including backward and reverse diagonal.
4Found words are highlighted green and crossed off the word list.
5Use the "Show Answers" button if you get stuck — no penalty for using hints!
6Print the puzzle using the Print button for a screen-free experience.

✓ Words can run in all 8 directions — including backward and reverse diagonal.
✓ For words you can't find, explicitly trace them backward (right to left, bottom to top).
✓ The 18×18 grid is large — scan systematically row by row, not randomly.
✓ Expert tip: Find the rarest letters in a word (Q, X, Z, J) and scan only for those first.

Physics

Chemistry

Astronomy

Geology