How do you make an object float when it ordinarily sinks?In this activity, students see that a can of regular cola sinks while a can of diet cola floats. As a demonstration, bubble wrap is taped to the can of regular cola to make it float. This high-volume but light-weight material increases the volume of the object more than it increases the weight. This decreases the density enough for the can-and-bubble wrap object to float. Students will use this idea to make an object that is more dense than water float.


  • Education > General
  • Mathematics > General

Education Levels:

  • Grade 1
  • Grade 2
  • Grade 3
  • Grade 4
  • Grade 5
  • Grade 6
  • Grade 7
  • Grade 8
  • Grade 9
  • Grade 10
  • Grade 11
  • Grade 12


Grade 6,NSDL,Teaching strategies,Grade 8,Grade 9,Using scientific equipment,Mathematics,oai:nsdl.org:2200/20120114184356801T,Asking questions,Grade 7,Measuring,Inquiry learning,Science process skills,Predicting,NSDL_SetSpec_1007936,Physical properties,Experimenting,Hypothesizing,Analyzing data,Observing,Instructional materials,Properties of materials,Collecting data,Middle School,Interpreting data,Grade 10,Chemistry,Physics,Science as inquiry,General,High School,Vocational/Professional Development Education,Physical science,Education



Access Privileges:

Public - Available to anyone

License Deed:

Creative Commons Attribution Non-Commercial Share Alike


This resource has not yet been aligned.
Curriki Rating
'NR' - This resource has not been rated
'NR' - This resource has not been rated

This resource has not yet been reviewed.

Not Rated Yet.

Non-profit Tax ID # 203478467