HUMAN NUTRITION

Detailed explanation-1: -The high surface tension helps the paper clip-with much higher density-float on the water. The cohesive forces between liquid molecules are responsible for the phenomenon known as surface tension.

Detailed explanation-2: -Surface tension allows water to hold up materials heavier and denser than itself. For example, the high surface tension of water enables a paperclip to float on the surface of water, and also allows some insects to walk on the surface of water.

Detailed explanation-3: -An object floats when the buoyant force is large enough to counter the object’s weight. So a large hollow object might float because large means more water displaced – so more buoyant force – and hollow means relatively little weight. A small solid object might not float, however.