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changes of matter

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thames thames

on 12 February 2015

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Transcript of changes of matter

PHYSICAL AND CHEMICAL CHANGE
changes of matter
by Anushka
examples of chemical and physical changes
CHEMICAL CHANGE
A physical change means that matter changes size, shape and smell .
Physical And Chemical Change
physical change
A physical change is when you can change something back to normal.
For example : When you burn chocolate it is melted, but when you freeze it turns back to normal.
chemical change
A chemical change is when you can not change it back to normal .
for example : when you burn paper you can not change it back .
watch the video
chemical change
Many chemical reactions are non-reversible changes. This means they are permanent changes that cannot be undone. You cannot turn the new materials made back into the original materials again.
physical chemical
Ice to Burning paper
water , Digestion
water to
vapour and
water again.
Full transcript