Matter and Physical Properties Matter is anything that has mass and takes up space. Objects made of matter can be very different from each other. Each object has its own set of characteristics, or properties. For example, one property of a piece of candy is its color. Another is its taste. Color, hardness, and taste are examples of physical properties. An object’s ability to conduct heat, sound, or electricity or to become a magnet are also physical properties. Physical properties are characteristics of a substance that can be observed or measured without changing the substance into something else. Some physical properties, such as color, can be observed directly. Other physical properties, such as length, must be measured. Measurements are especially useful in science because they provide more exact descriptions of matter than direct observations do. You can tell these balls apart by examining the physical properties of size, mass, and color. √What are some examples of physical properties?