Question

define of physical change​

Answer 1

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In a physical change appearance or form changes, but substance remains same. Ice on melting converts to water. Water on evaporation converts to water vapor. All the products formed are still forms of water. Hence, this is a physical change.

Answer 2

Answer: Physical change are changes in the physical properties of substances. No new substances are formed in these changes. These changes may be reversible.

For Example: Crushing a can, Glowing of an electric bulb,Tearing of paper,Mixing of sand and water.