surface tension
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surface tension |
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| navigate by keyword : atop blue chemical chemistry demonstrates diagram education emulsifier energy experiment floating fluid force hydrophilic hydrophobic iron lesson liquid needle penetrating physics research restoring school science scientific stay study supported supporting surface surfactant tenside tension viscosity water weight |
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| Surface tension. Iron needle stay atop the liquid because of surface tension. If the needle were placed point down on the surface, its weight acting on a smaller area would break the surface, and it would sink. |
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Stockphotos.ro (c) 2025. All stock photos are provided by Dreamstime and are copyrighted by their respective owners. |
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