Litmus paper, why so blue? A chemistry lesson includes a pre-lab activity, practice calculating pH, an experiment measuring the pH in acids and bases, a titration demonstration, and a titration experiment. 

Concepts

acids and bases, solutions, ph, litmus paper, titration

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Additional Tags

science

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Instructional Ideas

• Research if the foods we eat are typically acids or bases and why
• Some flowers and shrubs change color when their soil is changed from acid to base or base to acid; research which ones and what reactions occur

Classroom Considerations

• Follow all lab safety guidelines
• The fifth lesson in a series of eight

Pros

• Provides answers for discussion questions
• Includes step-by-step instructions for both experiments

Cons

• Does not include differentiation strategies

Common Core

RST.9-10.3 RST.11-12.3