Activity

Density Column

It may sink or float—and classes will know why! A hands-on activity has learners experiment with different liquids of varying densities by creating a colorful density column. They connect the mass and volume of the liquid to its tendency to sink or float.

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Instructional Ideas
  • Prior to the experiment, have pupils predict the order of density of the liquids
  • Shake the columns after they are settled and make observations about how different substances move and separate
Classroom Considerations
  • Allow time to collect and prepare necessary materials
Pros
  • Includes a detailed teaching guide to help plan for instruction
  • Provides a video to help introduce the investigation
Cons
  • None