They have different dimensions. They have different boiling points. They are made up of a different type of matter. They contain a different amount of matter per unit volume.
I am hesitating between 4 options to answer the following question, which option should I choose?
Question: Two pieces of the same metal are placed on a table. The pieces of metal have the same density, mass, and texture. Which characteristic must be the ONLY difference between the two samples?
Possibilities:
- They have different dimensions.
- They have different boiling points.
- They are made up of a different type of matter.
- They contain a different amount of matter per unit volume.

They have different dimensions.