NCES.8.P.1 - Understand the properties of matter and changes that occur when matter interacts in an open and closed container.
- NCES.8.P.1.1 - Classify matter as elements, compounds, or mixtures based on how the atoms are packed together in arrangements.
- NCES.8.P.1.2 - Explain how the physical properties of elements and their reactivity have been used to produce the current model of the Periodic Table of elements.
- NCES.8.P.1.3 - Compare physical changes such as size, shape and state to chemical changes that are the result of a chemical reaction to include changes in temperature, color, formation of a gas or precipitate.
- NCES.8.P.1.4 - Explain how the idea of atoms and a balanced chemical equation support the law of conservation of mass.