* Color is the way an object reflects light. It can be described by its hue, saturation, and brightness.
* Shape is the two-dimensional outline of an object.
* Size is the three-dimensional extent of an object. It can be measured in terms of length, width, and height.
* Mass is the amount of matter in an object. It is measured in kilograms (kg).
* Volume is the amount of space occupied by an object. It is measured in cubic meters (m³).
* Density is the mass of an object per unit volume. It is measured in kilograms per cubic meter (kg/m³).
* Melting point is the temperature at which a solid turns into a liquid.
* Boiling point is the temperature at which a liquid turns into a gas.
* Electrical conductivity is the ability of an object to conduct electricity.
* Thermal conductivity is the ability of an object to conduct heat.
* Magnetic susceptibility is the ability of an object to be attracted to a magnet.
Physical properties can be used to identify different substances, to study the structure of matter, and to design materials with specific properties.
