Wetness is a condition that occurs when a surface or substance is covered with water or another liquid. It is often described as the sensation of moisture, which can be felt on the skin or seen on various materials. Wetness can affect how objects interact, such as making surfaces slippery or altering the way light reflects off them. The degree of wetness can vary, from slightly damp to completely soaked. Different materials absorb water differently; for example, sponge absorbs water well, while plastic tends to repel it. Wetness plays a crucial role in many natural processes, including weather patterns and plant growth.