Lather is not necessary for an effective shampoo. After learning of the industry created consumer misinformation, individuals investigate the toxicity of the most popular additive in shampoos to create lather. They use their results to determine the perfect amount of additive for their shampoo samples. This is the 14th instructional activity of a 24-part series.

Concepts

toxicity, the green movement, environmental hazards, chemicals, toxic chemicals, solvents

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Additional Tags

science

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Instructional Ideas

• Have pupils make their calculations independently; compare results as a class and discuss any discrepancies
• Use article questions to spur a larger class discussion

Classroom Considerations

• Expects learners to make percent calculations

Pros

• Includes an answer key and teacher guide
• Provides a news clip for pupils to analyze

Cons

• None