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Peppery skin. by Jack. G oal. Show that the water has an invisible skin. Prediction. The pepper sinks. M aterials. Bowl, water, pepper, dishwashing liquid. S teps. 1 Fill the bowl with water. 2 sprinkle pepper all over the surface. 3 gently add a drop of the detergent. R esults.
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Peppery skin by Jack
Goal • Show that the water has an invisible skin.
Prediction • The pepper sinks.
Materials • Bowl, water, pepper, dishwashing liquid.
Steps 1 Fill the bowl with water. 2 sprinkle pepper all over the surface. 3 gently add a drop of the detergent.
Results • The skin seperated.
Conclusion • The detergent made the pepper break away.