Conclusion: We can see how surface tension in the water works when we touch the soapy toothpick to the peppery water. Pepper is hydrophobic, meaning it repels water. Because there is surface tension on the top of the water, the pepper floats on the top of the water and doesn't soak up any of the water.
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Explanation:
Conclusion: We can see how surface tension in the water works when we touch the soapy toothpick to the peppery water. Pepper is hydrophobic, meaning it repels water. Because there is surface tension on the top of the water, the pepper floats on the top of the water and doesn't soak up any of the water.