The document discusses surface tension in water and how it relates to cohesion and adhesion. It explains that water molecules are attracted to each other (cohesion), causing water to form spherical droplets to minimize its surface area. However, water is also attracted to other surfaces through adhesion. When cohesion dominates, spherical droplets form, and when adhesion dominates, sheets of water form. The document demonstrates this concept through examples of water droplets on various surfaces and how soap disrupts cohesion, causing water to spread out.