What term describes the characteristics of a substance that can be observed or measured without changing the substance?

• A. Physical Properties
• B. Density
• C. Volume
• D. Conductivity

Answer: (B)

Understanding what you can observe or measure about a substance without changing it helps you classify its traits as physical properties. Physical properties describe the substance as it is, without causing any chemical change—things you can test or measure like density, volume, and conductivity. Among the options, the general term that covers all such observable or measurable traits is physical properties. Density, volume, and conductivity are examples of physical properties—that is, they’re specific properties you can identify or quantify, not the broad category itself.