Models are simplified representations of complex systems or ideas that help us understand and predict how things work. For example, a map is a model of a geographical area, showing roads, rivers, and landmarks in a way that makes it easier to navigate. Similarly, in science, a molecular model can represent the structure of a chemical compound, helping researchers visualize how atoms are arranged and how they interact. In everyday life, we encounter models in various forms, such as fashion models who showcase clothing designs or financial models that predict economic trends. These models serve as tools to communicate concepts, test theories, and make informed decisions, making them essential in many fields.