a book and air
Temperature and amount of the substance do not change chemical properties.
a physical change is a change in any physical property of a substance, not in the substance itself
During a physical change, the matter of what the substance is made out of doesn't change.
i think Buoyancy and Density are two physical properties that can vary even when the substance with these properties doesn't change.
physical properties
Physical properties can be observed without changing the chemical composition of a substance. Chemical properties can only be observed by changing the chemical composition of the substance. In a physical change, the chemical composition of the substance does not change. In a chemical change, the chemical composition of the substance changes.
It's called a physical change.
physical changes do not change the chemical properties of a substance
no, if it's a substance change then it's a chemical change. If it were a physical change then it would be the same substance
When a substance changes but still retains its original properties, the change is called a physical change. If it didn't retain its original properties, then it went through a chemical change.
maybe..
chemical change