Final answer:
The term for a property that depends on the amount of a substance is 'Extensive.' Extensive properties vary with the quantity, such as mass and volume, in contrast to intensive properties like temperature, which remain the same regardless of quantity.
Step-by-step explanation:
The term that refers to a property which depends only on the amount of a substance is Option 2: Extensive. Extensive properties include characteristics like mass and volume, which are directly proportional to the amount of matter present. For example, the mass of a gallon of milk is greater than the mass of a cup of milk, illustrating how an extensive property changes with the quantity of the substance.
In contrast, intensive properties do not depend on the amount of matter present. An example of an intensive property is temperature; a gallon and a cup of milk at room temperature will both have the same temperature, regardless of the difference in their quantities.