surface of liquids

During the movie we were able to understand the importance of surface tension in liquids that have open surfaces. Surface tension is a property of liquids that is described as a pulled that exists in liquid surfaces which is uniform in all directions. Surfaces act as if they are in tension; this tension force affects the shape and motion of liquids that have an open surface. The force is between molecules that repel each other when close to each other, and attract each other when they are far away. Surface tension is also known as surface energy. Surface tension is expressed as dynes-per-centimeter and surface energy is expressed as ergs per square centimeter.
Important concepts of surface tension where explained during the movie accompanied by experiments ...