Weathered materials are substances that have been altered or broken down by natural processes over time. This can include rocks, soil, and even man-made structures. Factors such as wind, water, temperature changes, and biological activity contribute to the weathering process, leading to changes in texture, color, and composition. Common examples of weathered materials include sedimentary rocks, which form from the accumulation of weathered particles, and soil, which is created from the breakdown of rocks and organic matter. Weathering plays a crucial role in shaping landscapes and influencing ecosystems by providing essential nutrients for plants and organisms.