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changes around us

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changes around us

  • 1 answers

Shweta Gulati 7 years, 2 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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