Sediments are small particles of organic and inorganic materials that settle at the bottom of bodies of water, such as rivers, lakes, and oceans. They can include sand, silt, clay, and fragments of rocks, as well as remains of plants and animals. Over time, these particles accumulate and can form layers, providing valuable information about the Earth's history and environmental changes. Sediments play a crucial role in various natural processes, including the formation of soil and the habitat for many aquatic organisms. They can also affect water quality and clarity. Understanding sediments is important for fields like geology, environmental science, and archaeology, as they help scientists study past climates and ecosystems.