10. The states of matter were distinguished based on qualitative differences in their common properties. Which among the choices is NOT the reason why learning about the properties of matter is important? A. The main phases of matter are solid, liquid, and gas. B. Physical properties are used to observe and describe matter. C. Scientists need to know and understand common properties and characteristics of matter to make calculations. D. The main physical characteristics of matter are mass, volume, weight, density, odor, and color.