Critical thinking
Explain why a copper cube and aluminum cube, which are exactly the same size and shape, have a different mass?
Answer
The difference in mass must have something to do with the atoms in each cube. There are three possible explanations about the copper and aluminum atoms in the cubes that could explain the difference in mass.
- Copper atoms might have more mass than aluminum atoms.
- Copper atoms might be smaller so more can fit in the same volume.
- Cooper and aluminum atoms might be arranged differently so more copper atoms fit in the same size cube.
Any one of these explanations alone, or two or three together, could be the reason why the copper cube has more mass.
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