Why water does not fall even if we pour a little more water than the capacity of glass?

Water does not fall even if we pour a little more water than the capacity of glass as shown below.

This is due to a phenomenon called surface tension.

Because of attractive forces among water molecules, the surface of water behaves like a stretched sheet of rubber. There is a small tension in the water surface which prevents some water from overflowing immediately.

Because of surface tension phenomena, some small insects will be able to walk on water.

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Updated on: 10-Oct-2022

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