AP BIOLOGY

Detailed explanation-1: -Surface tension= the tightness across the surface of water that is caused by the polar molecules pulling on one another. The pulling forces the surface of the water into a curved shape. It also causes raindrops to form round beads when landing on a windshield of a car.

Detailed explanation-2: -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-3: -The surface tension arises due to cohesive interactions between the molecules in the liquid. At the bulk of the liquid, the molecules have neighboring molecules on each side. Molecules are pulling each other equally in all directions causing a net force of zero.

Detailed explanation-4: -Cohesion: Water is attracted to water. Adhesion: Water is attracted to other substances. Adhesion and cohesion are water properties that affect every water molecule on Earth and also the interaction of water molecules with molecules of other substances.

Detailed explanation-5: -The water molecules attract one another due to the water’s polar property. The hydrogen ends, which are positive in comparison to the negative ends of the oxygen cause water to “stick” together. This is why there is surface tension and takes a certain amount of energy to break these intermolecular bonds.