Ethanol, a grain alcohol, reduces emissions and conserves petroleum when mixed into gasoline. Four puzzles challenge pupils to match alcohols to their structural formulas, types of alcohol, and full oxidation products. Each puzzle increases in difficulty as they progress through the levels.

Concepts

alcohols, ethanol, chemical formulas

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Additional Tags

science

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Instructional Ideas

• Differentiate by assigning some the untimed paper puzzles and others the timed online puzzles

Classroom Considerations

• Assumes pupils know how to complete Sudoku-style puzzles
• Best works as a review of alcohols

Pros

• Fits as homework, small group activity, or whole-class computer lab assignment
• Includes answer key

Cons

• None

Common Core

RST.6-8.4 RST.9-10.4 RST.11-12.4