In this 11 page, three part, hands-on activity, students will calculate density using the different lab techniques and tools. They will use volumetric displacement, a triple-beam balance, and basic measurement to calculate volume of a geometric shape. This is an excellent activity to demonstrate two simple ways to measure volume, and compare results. Density is then used as a property to identify an unknown metal bar. Later, they use samples of rocks/ores/minerals. Lastly, they experiment with different liquids. In their assessment, the student must compare their experimental values to a table of givens, perform calculations, and explain their results.