You are presented with the quiz "What can be used to measure the amount of matter an object contains?" But you don't know the answer, so you turn to your teacher to ask for hints. He says that "abalance is used for measuring mass of an object" and "mass Amount of matter an object contains". So, what's the best answer to the question?
Choose your answer from:
1). Joules.
2). density.
3). Protractor.
4). Thermometer.
5). energy.
6). Balance.
7). Accelerometer.
8). microscope.
6).