Answer:
The density
Step-by-step explanation:
The density of a sample of a substance does not depend on its size. Therefore, by measuring the density of the sample and comparing it to the known densities of various substances, the student may be able to identify the substance. Mass and volume are properties that can vary between different samples of a substance. Temperature is a property of an object that can easily be changed, so different samples of the same substance may have different temperatures.