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 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 .
|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 .