| NAME _______________________________________ | DATE ______________ | 
| 1. | rectangular block:  unknown ________________, density ________________ sphere: unknown ________________, density ________________ cylinder: unknown ________________, density ________________ pennies: year________________, density ________________ | 
| 2. | Calculate the percent error in your determination of the cylinder. | 
| 3. | What is the average mass, average volume and average density of a single penny? | 
| 4. | If given a piece of "pure gold" jewelry, explain how you might determine if this is really the case. |