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surface tension
The property of a liquid that makes it behave as if its surface were enclosed in an elastic skin. It is responsible for the formation of liquid drops and bubbles. Surface tension arises from the fact that a molecule in the interior of a liquid is pulled equally from all sides by its neighbors, whereas a molecule at the surface is only attracted by molecules below it in the liquid. Water has an extremely high surface tension.
Related category
• PROPERTIES OF MATTER
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