Final answer:
The density of a large piece of aluminum is the same as that of a small piece, with a constant value of approximately 2.70 g/cm³, indicating that density is an intrinsic property that does not change with sample size.
Step-by-step explanation:
According to results from the PhET Density Lab, the density of a large piece of aluminum compared to a small piece remains the same. Density is a physical property of a substance and is defined as mass per unit volume. For aluminum, the density is about 2.70 g/cm³, irrespective of the size of the sample. This means that whether you have a large piece or a small piece of aluminum, the ratio of mass to volume will not change. However, the overall mass and volume will be different due to the size difference, but the density value will remain constant at approximately 2.70 g/cm³.