Chemistry puzzles

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

Our top puzzle

Cryptic crossword grid 117

Cryptic chemistry crossword #117

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Can you discover ‘Isaac Newton’s hidden condition (4)’?

Cryptic crossword grid 122

Cryptic chemistry crossword #122

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We hope this cryptic chemistry crossword doesn’t leave you with a ’vulgar bottom! (4)’

Cryptic crossword grid 121

Cryptic chemistry crossword #121

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Caught doing crosswords at work? ’Gather cake mix for boss (4, 6)’!

Cryptic crossword grid 120

Cryptic chemistry crossword #120

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Will this chemistry-themed cryptic crossword ’Make teenager confused (8)’?

Cryptic crossword grid 119

Cryptic chemistry crossword #119

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If you can complete this cryptic chemistry crossword, maybe we’ll ’arrange some red roses by return (5)’

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 

Quick crossword grid 099

Quick chemistry crossword #099 - Lab Innovations 2025 special

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Look ahead to this year’s Lab Innovations event with a bumper quick crossword.

Wordoku grid 131

Chemistry wordoku #131

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Complete this puzzle to find the element with Celtic connections

Wordoku grid 130

Chemistry wordoku #130

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You may want to hold your breath while you complete this sudoku-inspired puzzle 

Wordoku grid 129

Chemistry wordoku #129

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Find the green chemist in this sudoku-style puzzle