Surface tension forms a strong bond at the surface of a water body.

Drawing showing water molecules on a water surface form a strong bond, causing surface tension.

Detailed Description

Surface tension in water owes to the fact that water molecules attract one another, as each molecule forms a bond with the ones in its vicinity. At the surface, though, the outmost layer of molecules, has fewer molecules to cling to, therefore compensates by establishing stronger bonds with its neighbors, this leading to the formation of the surface tension. Take a look at the following figure, in which the molecules at the top are the ones found at the surface of the water, and you will understand the process better:

Details

Image Dimensions: 282 x 289

Location Taken: US