a physical change
ex. change in state
This is a chemical change.
That is officially known as a chemical change. It is distinct from a physical change which does not alter a substance into a different substance.
The chemical changes take place on moleculer space. A chemical change form (or) produce a new substance.
During a physical change, the matter of what the substance is made out of doesn't change.
A physical change is reversible and does not affect the composition of a substance. On the other hand, chemical change is irreversible and permanent. A substance undergoing a chemical change forms a new substance which has different composition than the original substance.
Physical property of matter
physical change is a change in matter in which no new substance is formed Chemical change is a change in matter in which new substance is formed
Energy is the ability to cause a change in matter.
By heating or freezing.
Because no chemical reaction is taking place. It is the same substance, just in a different state of matter.
well the reason they do that is to see that if there are a lot of those kind of animals or if there is more of them.
PHYSICAL CHANGE - refers to the change in size, shape, or state of matter. CHEMICAL CHANGE - happens when one chemical substance is transformed into one or more different substance, such as iron becomes rust.