science
water freze and the boulder expands what is this
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This phenomenon is known as "frost wedging". Frost wedging occurs when water in cracks between boulders freezes and expands during cold temperatures, pushing apart the rocks. The ice in the crack expands and puts pressure on the neighboring rocks, eventually causing them to fracture and separate. This process can continue to weaken the rocks over time and is a common factor in erosion, causing large rocks to break apart or weather away over time.