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CBSE Class 11-science Answered

Why spiders can walk on water ?
Asked by HIMANSHI SHARMA | 11 Oct, 2013, 08:31: PM
Expert Answer
The spiders can walk on water due to Surface Tension.

Surface tension is the tendency for the surface of a liquid to act like a stretched membrane or piece of rubber. The cohesive forces work to bring the molecules on the interior of the liquid to the exterior surface.

Small organisms have relatively large ratios of surface area to volume (S/V).

The main reason why certain creatures can "walk" on water because their bodies have tiny, little hairs on the bottom of their legs and feet. Their body weight is so minute that it only creates a dimple in the water's surface which allows the insect to "walk on water.

Answered by Hanisha Vyas | 12 Oct, 2013, 08:17: PM
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