Physical Changes
Physical Changes change the physical appearance and state of an object. Like when you break a pencil, you change the pencil from one piece into two. This doesn't change the chemical matter of the object, it only changes the physical state of it.
Chemical Changes
A chemical change uses chemicals to change an object. A chemical change may sometimes change the physical appearance of an object, but still changes the chemical matter of the object.
Physical Changes change the physical appearance and state of an object. Like when you break a pencil, you change the pencil from one piece into two. This doesn't change the chemical matter of the object, it only changes the physical state of it.
Chemical Changes
A chemical change uses chemicals to change an object. A chemical change may sometimes change the physical appearance of an object, but still changes the chemical matter of the object.