Two revision puzzles that will challenge your GCSE chemistry/combined science students.
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Developing the periodic table - wordsearch with secret message revealed between the words. The message is a model answer to the common exam question “Why did Mendeleev leave gaps in his periodic table”, which students often seem to struggle with.
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Alkali metals reactivity - a cryptogram revealing another model answer, this one explaining the pattern of reactivity observed in group 1 metals.
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