Q&A/Class 6/Science

How is curd being set? Is this change reversible?

Class 6CBSEScienceChapter: Changes Around Us
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A small quantity of curd is added to warm milk. The milk is stirred and is set aside undisturbed for a few hours at a warm place. In a few hours, the milk changes into curd. Curd formed from milk cannot be changed into milk again. So, this an irreversible (cannot be reversed) change.

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