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changes around us

Posted by Harshita Rajesh Ganesan 7 years, 4 months ago

CBSE > Class 06 > Science

1 answers

Shweta Gulati 7 years, 3 months ago

There are a lot of changes that occur around us. The two type of changes are:

Physical changes and Chemical Changes

Those changes in which only the physical properties of the substances change but no new substances are formed are called physical changes. Example- Melting of ice to form water and freezing of water to form ice.

Those changes in which new substances are formed are called chemical changes. Example- Burning of a piece of paper

The physical changes are temporary and usually reversible whereas chemical changes are permanent and irreversible.

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CBSE > Class 06 > Science