After teaching your students how to calculate density, this worksheet can be used in a variety of ways! It can be simply for practice, you can use it as a formal or informal assessment, or it could make for easy sub plans on a day you will be out! Students begin by calculating the volume of substances based on water displacement and on measurements of cubes. Then they consider how volume and mass can be used to find the density of common substances. They apply their knowledge by calculating the density of regularly and irregularly shaped substances. Finally, they use all of what they have learned to solve a real life problem. All of the material in this worksheet is based on actual densities, and your students will be pleased at how easily applicable this information is. Buy it today from my store, Resources for Scientists in Training!