Changing the Density of an Object - Adding Material

In this sixth of seven activities revolving around the concept of density, physical science fans figure out if anything can be done to change the density of an object. Demonstrate by placing a can of regular and a can of diet soda into a tub of water and having them discuss why they behave differently. Then let them bubble wrap a regular soda can and put it back in water. Why does it float now?

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Pros

  • A fun and vivid demonstration that helps learners make the connection between volume and density
  • Well-written lesson plans and lab sheets make this lesson pop
  • Part of a seven-lesson investigation of density
Cons

  • None