Why blowing a balloon is a physical change

blowing a balloon is a physical change as  when you blow a balloon the balloon expands but the balloon remains a balloon .there is change in size but the material is same .

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because after blowing it can be burst
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Because at first the balloon is flat. But when we blow air into it, it grows in size, hence proving that air occupies space, which is a physical change.
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because the balloon  changes its orginal stage
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if you blow the balloon the gas will go inside the balloon it will change its size and shape
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it is because after blowing a balloon it bursts . when it bursts it reduces its size and then bursts. change of size can prove that blowing a balloon is a physical change
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  It is  a  physical change  as   it  can be  reversed  and no  new substance is  formed
Only  the size is  changed not  the  composition
The  balloon remains a balloon only

 
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Blowing a balloon is a physical change because if we let the air out of the balloon it goes back to its actual state. 
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dtyjdtyjtdy
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Thank you very much
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Because it can be reversed to form it's original form  .
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Blowing a balloon is a physical change because only the size of the balloon changes , no change in chemical properties of the balloon occurs (no new substance is formed).
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