Examine a plant adaptation that deters animals from eating it. Some plants such as grapes, walnuts, and teas produce a chemical substance called tannin in its fruits and leaves because most animals dislike the texture and flavor. An entertaining video lesson explains this reaction by describing the chemical breakdown.

Concepts

tanning, edible plants, protein, saliva, defense, plant adaptations

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Additional Tags

science

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Instructional Ideas

• Bring samples of grapes, walnuts, tea or other foods high in tannins to allow pupils to experience the taste
• Include the video with others in this series describing plant protective adaptations

Classroom Considerations

• Display the video without the comments as they may not be appropriate

• This video is hosted on YouTube

Pros

• Provides images to add interest and clarity
• Uses clever language to add humor to the presentation

Cons

• None

Common Core

SL.9-10.2 RST.9-10.7