Determining Densities

Don't be dense—use a robust resource. The second installment of a five-part Floaters and Sinkers unit has learners determine the densities of several objects. As part of the activity, they learn the displacement method for finding volume. They'll then plot a mass versus volume graph and predict which objects will float in water.

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CCSS: Designed
Instructional Ideas
  • Have pupils create a graphic organizer summarizing density concepts
Classroom Considerations
  • A variety of materials is necessary for the activity; see resource for complete list
  • Scholars must be familiar with volume formulas for solids (prisms, cylinders, spheres)
  • Provides a recording sheet for the activity
  • Lists some troubleshooting tips
  • None