Standard 7.P.2B

7.P.2B - Substances (such as metals or acids) are identified according to their physical or chemical properties. Changes to substances can either be physical or chemical. Many substances react chemically with other substances to form new substances with different properties. According to the law of conservation of matter, total mass does not change in a chemical reaction.

Grade(s): 7

Subject(s): Science

Year: 2014