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The Invisible Skin of Water: A Pepper Experiment

Discover the fascinating phenomenon of water’s invisible skin through a simple experiment! In this demonstration, you will witness how pepper behaves on the surface of water and the effect of dishwashing liquid. By filling a bowl with water, sprinkling pepper on its surface, and adding a drop of detergent, you’ll observe how the pepper sinks as the surface tension is disrupted. This engaging activity highlights the properties of water and surface tension, perfect for educational settings or a fun science project at home.

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The Invisible Skin of Water: A Pepper Experiment

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Presentation Transcript

  1. Peppery skin by Jack

  2. Goal • Show that the water has an invisible skin.

  3. Prediction • The pepper sinks.

  4. Materials • Bowl, water, pepper, dishwashing liquid.

  5. Steps 1 Fill the bowl with water. 2 sprinkle pepper all over the surface. 3 gently add a drop of the detergent.

  6. Results • The skin seperated.

  7. Conclusion • The detergent made the pepper break away.

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