What are some details are for mechanical weathing?

Mechanical weathering, also known as physical weathering, involves the breakdown of rocks into smaller pieces without changing their chemical composition. Key processes include freeze-thaw cycles, where water seeps into cracks, freezes, and expands, causing the rock to fracture. Other mechanisms include thermal expansion, where temperature fluctuations cause rocks to expand and contract, and abrasion, where rocks are worn down by friction from wind, water, or ice. This type of weathering is crucial in shaping landscapes and contributes to soil formation.