Chemistry puzzles

Science and chemistry-themed puzzles, including wordoku, quick and cryptic crosswords. Test your chemistry knowledge and puzzle-solving skills

Win with GPE Scientific

These cryptic crosswords each contain two special letters. Complete the crosswords and make a note of the letters – if you can work out the chemistry-related term they make, you could be in with a chance of winning one of ten prizes valued at £50 each.

There will be six prize puzzles in total, with the last one publishing in June alongside full details of how to enter the competition. Good luck!

Cryptic crossword grid 130

Cryptic chemistry crossword #130

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‘This might initially confuse the artisan (5)’, but then, cryptic crosswords can be confusing…

Cryptic crossword grid 129

Cryptic chemistry crossword #129

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Can you find the ’tiny particle of weird cheese? (7,5)’ in this cryptic chemistry crossword?

Cryptic crossword grid 128

Cryptic chemistry crossword #128

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’60 minutes belong to us they say (3)’, so why not spend an hour doing this cryptic chemistry crossword?

Cryptic crossword grid 127

Cryptic chemistry crossword #127

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Can you find the ’Terribly truncated agent (9)’ in this cryptic chemistry crossword?

Wordoku grid 139

Chemistry wordoku #139

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Find the element that takes third prize for abundance in the Earth’s crust in this sudoku-style puzzle

Wordoku grid 138

Chemistry wordoku #138

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Find the policy-minded chemist in this sudoku-style puzzle 

Wordoku grid 137

Chemistry wordoku #137

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Clear up the puzzle to find the chemist known for cleaning up the air

Quick crossword grid 102

Quick chemistry crossword #102

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Galvanise yourself to solve this quick chemistry crossword

Quick crossword grid 101

Quick chemistry crossword #101

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Indian and Danish physicists meet British astronomers and evolutionary biologists in this quick chemistry crossword 

Jumbo 2025 quick crossword grid

Jumbo quick crossword 2025

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An extra large edition of our quick chemistry crossword

Quick crossword grid 100

Quick chemistry crossword #100 - Shimadzu special

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Search for solutions in this special Shimadzu-themed quick chemistry crossword

Nobel crossword 2025 grid, overlaid with illustration of Alfred Nobel

Nobel prize crossword 2025

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Test your Nobel nous with this chemistry-themed crossword