This homework or class assignment is suitable for physical science, general science, or chemistry.
This shows a simple way to calculate the densities of alloys. To increase interest it uses familiar objects, American pennies, nickels, dimes, quarters, half dollars, Susan B. Anthony dollars, and the Sacagawea gold-colored dollar.
It is in Word format and is structured for easy grading (all answers are aligned on the left margin).
The assignment can be extended experimentally by conducting a lab activity in which the density of the coins is measured. If this is done, to increase accuracy it is recommended that the mass and volume of ten to twenty of each coin be used to establish the base measurements.