28 chemistry puzzles for 11-14 years

A screenshot showing a completed gridlock puzzle, with a grid containing the names and symbols for four elements

Source: Royal Society of Chemistry

Try these sudoku-style chemistry puzzles for 11–14 year olds to reinforce your students’ understanding of key ideas, featuring 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 of the game.

Each puzzle is available for download as a printable worksheet with answers included.

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