Fact 1: Ameasuring cup is used for measuring the volume of substances.

Fact 2: Volume is the amount of space an object or substance takes up.

Given the two facts above, answer the question "What measures the amount of space a substance takes up?" with the following options: 
- hydrogen and oxygen
 - objects that have mass
 - Veins and arteries.
 - sweating
 - evaporation
 - A measuring cup
 - heat energy
 - an electron microscope


 

      A measuring cup   