How Do We Identify These Changes?

Last updated at April 25, 2026 by

Physical changes can usually be reversed back to original form.
Chemical changes cannot be reversed back easily.
For example, melted ice becomes water again when frozen.
But burnt wood cannot become wood again .

Physical vs Chemical Changes Property Physical Changes Chemical Changes Reversibility Can be reversed Cannot be reversed easily Substance Same substance New substance formed Example Ice to water Wood to ash
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