The physical properties of matter are texture, appearance, odor, color, boiling point, melting point, solubility, density, polarity and others. Physical properties describe the observations of the three states of matter. The three states of matter are gases, liquids and solids.
The observation or measurement of physical properties of matter does not change its composition or its chemical nature. Other examples of physical properties include the infrared spectrum, attraction or repulsion to magnets, viscosity and opacity.
The other basic type of property associated with matter is its chemical properties. Chemical properties of matter include reactivity with water, electromotive force, pH and heat of combustion.