meter stick and test tubes. beaker and stopwatch. thermometer and computer probes. balance and graduated cylinder.
I gave my students this multiple choice question: The density of a material can be measured by using a

Only one answer is correct among these 4 choices:
- meter stick and test tubes.
- beaker and stopwatch.
- thermometer and computer probes.
- balance and graduated cylinder.

Could you tell me which one is correct?

balance and graduated cylinder.