Categories are groups that help us organize and understand different things in our world. For example, we can categorize animals into groups like mammals, birds, and reptiles. This makes it easier to study and learn about their characteristics, behaviors, and habitats. In everyday life, we use categories to simplify choices. When shopping, we might see categories like clothing, electronics, and groceries. By sorting items into these groups, we can quickly find what we need without feeling overwhelmed by too many options. Categories help us make sense of the vast amount of information around us.