28 sudoku-style chemistry puzzles to help 11–14 year olds consolidate their understanding of key ideas, with printable worksheets and answers
Stimulate and challenge your students using these printable ‘gridlock’ puzzles based on sudoku. From common compounds to the periodic table, each puzzle focuses on a particular topic suitable for 11–14 year olds. Students begin by reviewing relationships between key chemical ideas and data, before using this information to complete a series of grids according to the rules provided.
Download the puzzles
Download and print the puzzles below. Each PDF features a series of gridlock puzzles based on a specific topic, with a printable student worksheet and answers.
How do the puzzles work?
To find out more about the rules and how you can use the puzzles in your teaching, see the Gridlocks overview.
Acids and saltsHandout | PDF, Size 0.12 mb
Acids and alkalisHandout | PDF, Size 0.12 mb
Alkalis and saltsHandout | PDF, Size 0.12 mb
AlloysHandout | PDF, Size 0.12 mb
Apparatus diagrams 1Handout | PDF, Size 2.51 mb
Apparatus diagrams 2Handout | PDF, Size 2.8 mb
Apparatus diagrams 3Handout | PDF, Size 3.26 mb
Apparatus diagrams 4Handout | PDF, Size 6.43 mb
Common compoundsHandout | PDF, Size 0.1 mb
Compounds ending in -ateHandout | PDF, Size 0.1 mb
Elements 1Handout | PDF, Size 0.1 mb
Elements 2Handout | PDF, Size 0.12 mb
Elements 3Handout | PDF, Size 0.12 mb
Elements 4Handout | PDF, Size 0.12 mb
Everyday chemicals (11-14)Handout | PDF, Size 0.12 mb
Extraction of copperHandout | PDF, Size 0.12 mb
Formulas of compoundsHandout | PDF, Size 0.1 mb
Hazard signs and symbolsHandout | PDF, Size 1.51 mb
Naming binary compoundsHandout | PDF, Size 0.1 mb
Periodic Table 1Handout | PDF, Size 0.12 mb
Periodic Table 2Handout | PDF, Size 0.1 mb
Pollutants in the air (11-14)Handout | PDF, Size 0.12 mb
Rock types 1Handout | PDF, Size 0.1 mb
Rock types 2Handout | PDF, Size 0.1 mb
States of matter 1Handout | PDF, Size 0.13 mb
States of matter 2Handout | PDF, Size 0.12 mb
Structure of the EarthHandout | PDF, Size 0.14 mb
Testing for gasesHandout | PDF, Size 0.12 mb
These resources were originally part of the Gridlocks website, produced by the Royal Society of Chemistry with support from the Wolfson Foundation.
Gridlocks: 101 printable chemistry puzzles
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Puzzles for 11-14 year olds: from acids to states of matter
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