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definition of a physical change
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GPT-4o mini
A physical change is a transformation that alters the form or appearance of a substance without changing its chemical composition. This type of change can involve alterations in physical properties such as shape, size, state (solid, liquid, gas), or texture, but the underlying substance remains the same. Examples of physical changes include melting ice, boiling water, dissolving sugar in water, or cutting paper. These changes are usually reversible, meaning the original material can often be restored to its initial state.
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