changes around us
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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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