Sand is made of tiny pieces of rock that have been worn down by wind and water. Explain why the formation of sand is a physical change.
Chemistry · High School · Tue Nov 03 2020
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The formation of sand from the weathering of rocks is considered a physical change because it involves the breakdown of larger rock particles into smaller ones without altering the chemical composition of the rocks. Physical changes affect the state or form of matter without changing its chemical structure. In the case of sand formation, the rocks experience mechanical weathering, where physical forces like wind and water break them into smaller particles, but the fundamental composition of the minerals in the rocks remains unchanged.