Image for Physical weathering

Physical weathering

Physical weathering refers to the process where rocks and soil break down into smaller pieces without changing their chemical composition. This occurs through various natural forces, such as temperature changes, freeze-thaw cycles, or the pressure of growing plant roots. For instance, water can seep into cracks in rocks, freeze when temperatures drop, and expand, causing the rock to fracture. Over time, these repeated mechanical stresses lead to the gradual disintegration of larger geological formations into smaller fragments, contributing to landscape changes and soil formation.

Additional Insights

  • Image for Physical weathering

    Physical weathering is the process by which rocks and minerals break down into smaller pieces without changing their chemical composition. This occurs due to natural forces, such as temperature changes, water, ice, and wind. For example, when water seeps into cracks in rocks and freezes, it expands, causing the rock to fracture. Other factors like thermal expansion and the impact of windblown particles can also contribute. Over time, these processes help shape landscapes, creating features like valleys and cliffs, and play a crucial role in soil formation and the erosion of geological structures.