Fact 1: Abalance is used for measuring mass of an object.

Fact 2: Mass Amount of matter an object contains.

Given the two facts above, answer the question "What can be used to measure the amount of matter an object contains?" with the following options: 
- Joules
 - density
 - Protractor
 - Thermometer
 - energy
 - Balance
 - Accelerometer
 - microscope


 

      Balance   