Color, hardness, solubility, mass, density, volume, and melting point are all examples of what type of property of substances?

Color, hardness, solubility, mass, density, volume, and melting point are all examples of physical properties of substances. This type of properties are those that can be measured or observed with a process that do not involve changing the composition and identity of the sample. These properties are used to describe a sample. The techniques and methods involved in measuring these properties only involve physical changes. Further, these properties are classified into extensive and intensive properties. Extensive properties are those that do not depend on the amount of the sample while intensive properties are the properties that depend on the amount of the sample.