What is the difference between the physical changes and the chemical changes ?

The Physical  and the Chemical changes of the matter

The changes that may occur to the matter are the physical changes and the chemical changes .

The physical change

The physical change is a change in the shape of the matter without any change in its structure ( properties ) .

The properties of the physical changes and the chemical changes
The difference between the chemical changes and the physical changes .

Examples of the physical changes 

When you grind the chalk or the sugar into the powder .

The change of the water ( The matter ) from one state to another state ( ice cycle ) .

When any solid matter melts as the wax , the chocolate and the ice .

When you dissolve the table  salt or the sugar in the water .

When you cut the paper into the small pieces and when you make the paper recycling .

The malleability  , the ductility and the bending of the elements .

The chemical change

The chemical changes in the matter produce a new matter such as in burning , rusting , cooking and Film processing , The chemical change is a change in the structure of  the substance producing a new substance or new substances with the different properties .

Examples of the chemical change

When  you burn any matter as ( wood ,  sugar ,  paper or a candle ) .

when the iron rust , the shape and the structure of the cleaning iron change as it is exposed to the wet air .

When you add sodium bicarbonate to vinegar .

When you add the yeast to the pastry ( doughs ) .

In the production of the yoghurt from milk .

In the fermentation of the fruits or the sugar .

In the digestion of the food .

The examples of the chemical changes and the physical changes
Examples of the chemical changes and the physical changes .

The melting of a candle is a physical change , while the burning of a candle is a chemical change , The freezing of any liquid matter as water is a physical change .

The evaporation of the water to form the water vapour and the condensation of the water vapour into the water drops are physical changes , The boiling of water and the melting of any solid matter are physical changes .

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