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2B40.u4 - Bowling Ball Densities

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​2B40.u4 - Bowling Ball Densities

Preview
SelectSelected
Title2B40.u4 - Bowling Ball Densities
Objective

​To demonstrate the differences in densities of bowling balls that look the same, but are very different.  Also, a pumice rock is available to show that rocks can indeed float.

StatusAvailable
Assembly Instructions

​Fill the large fish tank with water from the tap.  Be sure to have the blue plate on the bottom of the fish tank to protect from drops of the bowling balls.  Provide LOTS of paper towel.  Inform professors to use 2 hands when moving the bowling balls in and out of the fish tank.

Setup Time10
Operation Time5
Preview Time5
Operation Instructions

With the fish tank full of water, using two hands, lower each bowling ball into the water.  Observe the differences between the two bowling balls.  One floats and one sinks, while the pumice rock floats.​

ExportableNo
Demo on DimeNo
PIRA 200No
Export Instructions (if different)
HazardsNone
Analysis/Information
Category2 Fluid Mechanics
Subcategory2B - Statics of Fluids
Keywordsdensity, floating rock, pumice
Construction Information
 
  
  
fish tank - large
1
water - from the tap
1
foam padding - cut to fit fish tank bottom
1
plastic sheet
1
fill hose - water
1
bowling ball - red (heavy)
1
bowling ball - blue (light)
1
pummus rock
1