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The tooth is rotting so it is changing its nature due to the influence of bacteria or the acid secreted by bacteria. If the new material is no longer dentine but the byproducts of decay then it is a chemical change.
If the tooth breaks then that is a physical change.
Wiki User
∙ 13y ago
Wiki User
∙ 9y agoA tooth cavity is a chemical change. Once the cavity forms, it cannot be reversed since the reactions carried out by the micro-organisms are permanent.
Wiki User
∙ 11y agobecause of the gravity.
Wiki User
∙ 10y agoTeeth are organs, not changes !
Anonymous
Chemical
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Physical
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physical change
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a change in size, shape or the state of matter is a physical change. True for A+.
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Volume is a physical quantity not a change. However CHANGE in volume is a physical change.
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It is a physical change.
Is a cavity forming a physical or chemical change?
chemical
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The diaphragm separates the chest from the abdomen and pelvis
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It is a Physical change
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Crumple is a physical change.
Is carving a pumpkin a chemical change or physical?
It is a physical change.
A physical change that does not produce a new substance is called what?
physical change
Is it a physical change chemical change when salt dissolves in water?
Physical
Is squeezing a lemon a physical or chemical change?
It's a physical change why are some people f$#@%ing stupid and saying a chemical change??
Is mowing the lawn a chemical change or physical change?
I Physical Change.
Is carving plastic a physical change or chemical change?
physical change
Is sublime a physical change or chemical change?
Subliming (better known as sublimation) is a change in state, so it is a physical change.
Which is A change in size shape or state of matter?
a change in size, shape or the state of matter is a physical change. True for A+.
