Sugar water is a simple mixture made by dissolving sugar in water. It is often used in cooking and baking to sweeten beverages and dishes. The concentration of sugar can vary, resulting in different levels of sweetness. In addition to culinary uses, sugar water is sometimes used in scientific experiments and as a feeding solution for certain animals, such as hummingbirds. It can also serve as a basic hydration solution in emergencies, although it is not a substitute for proper medical treatment.