Big Idea 1: The chemical elements are fundamental building materials of matter, and all matter can be understood in terms of arrangements of atoms. These atoms retain their identity in chemical reactions
Big Idea 2: Chemical & physical properties of materials can be explained by the structure and the arrangement of atoms, ions, or molecules and the forces between them
Big Idea 3: Changes in matter involved the rearrangement and/or reorganization of atoms and/or the transfer of electrons