A system is a group of interconnected parts that work together to achieve a common goal. For example, a car is a system made up of various components like the engine, wheels, and brakes, all functioning together to provide transportation. Each part plays a specific role, and if one part fails, the entire system can be affected. In nature, we also see systems at work, such as an ecosystem. This includes living organisms like plants and animals, as well as non-living elements like water and soil. Each component interacts with others, creating a balanced environment where all parts depend on one another for survival.