chemical change
by changing it
When a substance changes from one state of matter to another it is called changing its state. Temperature changes are usually the main cause of this change.
Chemical change
Chemical change
When a substance changes from one state of matter to another it is called changing its state. Temperature changes are usually the main cause of this change.
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An increase in temperature typically causes matter to change from a solid to a liquid or from a liquid to a gas. A decrease in temperature often results in the opposite transition, causing matter to change from a gas to a liquid or from a liquid to a solid.
The density will change if the amount of matter in the same volume changes. You can have more matter wihtout changing the density, if the matter occupies more space.
This can involve changing the shape of matter, or changing the speed or direction of an object.
It may change its measurable properties but a simple state change is brought on by an increase or decrease the energy content of the material and does not alter the material from one material to another.
If it is melting, boiling, condensing, subliming, or depositing, then it is changing state.
Physical change.