| Develop a model to describe that matter is made of particles too small to be seen. [ Examples: adding air to expand a basketball, compressing air in a syringe, dissolving sugar in water, & evaporating salt water.] | Next Generation Science Standards | Grade 5 | Physical Science | Matter and its Interactions |
| Make observations & measurements to identify materials based on their properties. [Examples of properties: color, hardness, reflectivity, electrical conductivity, thermal conductivity, response to magnetic forces, & solubility; density is not intended as an identifiable property.] | Next Generation Science Standards | Grade 5 | Physical Science | Matter and its Interactions |
| Conduct an investigation to determine whether the mixing of two or more substances results in new substances. | Next Generation Science Standards | Grade 5 | Physical Science | Matter and its Interactions |
| Analyze and interpret data on the properties of substances before and after the substances interact to determine if a chemical reaction has occurred. [Examples:burrning sugar or steel wool, fat reacting with sodium hydroxide, mixing zinc with HCl.] | Next Generation Science Standards | Middle School | Physical Science | Matter and Its Interactions |
| Construct & revise an explanation for the outcome of a simple chemical reaction based on the outermost electron states of atoms, trends in the periodic table, & knowledge of the patterns of chemical properties. | Next Generation Science Standards | High School | Physical Science | Matter and Its Interactions |
