Experiment library/Density & Buoyancy
Middle School Physics Foundations

Density & Buoyancy: Float, Sink or Suspend

Release the same cube in two fluids. Compare density, displaced volume, and vertical forces while one object rises and the other sinks.

  • Side-by-side oil, water, and salt-water comparisons
  • Correct weight, buoyancy, drag, and bottom normal forces
  • Live displaced volume, submerged fraction, and net force
  • Object mass, volume, fluid density, and gravity controls
  • Six editable explanation steps for a 15-minute lesson
  • 16:9 and 9:16 canvases with zoom and fullscreen
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Science Studio density and buoyancy experiment comparing the same object in water and oil
Actual experiment outputThe same object produces two different outcomes because the fluids have different densities.