Properties such as shape, size, colour and state of a substance are called____________ properties.

Properties such as shape, size, colour, and state of a substance are called physical properties.

Physical properties are characteristics that can be observed or measured without altering the chemical composition of the substance. For example, the shape refers to the external form of the substance, size pertains to the physical dimensions, colour describes the visual appearance, and state (solid, liquid, gas) refers to the form in which the substance exists. These properties are essential in identifying and distinguishing different materials, as well as understanding their behavior under various conditions. Unlike chemical properties, which can change a substance into something new during a reaction, physical properties remain consistent regardless of the changes the substance may undergo.