Rationale Knowledge of the physical and chemical properties of matter and energy is basic to an understanding of the earth and space, life and environmental, and physical sciences. The properties of matter can be explained in terms of the atomic structure of matter. Chemical reactions can be explained and predicted in terms of the atomic structure of matter.
Natural events are the result of interactions of matter and energy.
When students understand how matter and energy interact, they can explain and predict chemical and physical changes that occur around them .