We have all heard that we are what you eat, but what are we eating? An informative lesson opens with a discussion of the foods pupils have recently eaten. Then, young scientists perform four experiments on seven different foods to identify which contained lipids, protein, starch, and sugar through iodine starch testing, Benedict's solution testing, lipid testing, and Biuret reagent testing.

Concepts

macromolecules, carbohydrates, lipids, carbon, protein, nucleic acids

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Additional Tags

science

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Instructional Ideas

• Schedule a field trip to a grocery store to view a large variety of food labels

Classroom Considerations

• Be aware of food allergies
• Follow all safety instructions for handling raw egg, raw fish, Benedict's solution, and Biuret reagent

Pros

• Lesson follows 5E format
• Includes differentiation strategies

Cons

• Does not provide an answer key

Common Core

RST.6-8.3 RST.9-10.3 RST.11-12.3