Question

Physical and chemical change

Answer 1

Chemical change: a change that occurs when one substance combines with another substance to make a new substance

Physical change: a change to any physical property of a substance

Answer 2

physical change in a substance doesn't change what the substance is. In a chemical change where there is a chemical reaction, a new substance is formed and energy is either given off or absorbed. For example, if a piece of paper is cut up into small pieces it still is paper.