A log of wood is burnt to be used in a campfire. Can the burnt wood go back to the original state of clean wood? Why or why not? What kind of change is it? [2 MARKS]

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Solution

Statement: 1 Mark
Type of change: 2 Marks

No, Once the wood is burned, it changes to ash, and we cannot get back the wood again.This is because burning wood is an irreversible change, and irreversible changes cannot be undone since they are permanent.

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