Moving water can contribute to physical weathering in multiple ways. One of these ways is by transporting rocks to different locations. As water flows, it can carry and move rocks downstream, causing them to collide with other rocks and surfaces, leading to physical weathering. Another way is by making rocks expand and contract. When water seeps into cracks and joints in rocks, it can freeze and expand during colder temperatures, exerting pressure on the rock and forcing it to break apart. Conversely, when the water thaws, it contracts, which can also contribute to the gradual breakdown of rocks. In addition, moving water can cause rocks to constantly bump against each other, leading to abrasion and the wearing away of the rock surfaces. This repeated collision and rubbing can gradually break down the rocks into smaller fragments. However, the formation of new minerals in rocks is usually associated with chemical weathering, rather than physical weathering.
