Viscosity Materials for Density Lessons

Viscosity is the measure of the "thickness", or "fluidity", of a liquid. When turned upside down, the colorful viscous liquid in Soother Ooze Tubes takes about ten minutes to flow through a large opening in the sealed plastic container.
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  • Viscosity of Oil Tubes

    Viscosity of Oil Tubes
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    Great for recording data, graphing, controlling variables, and more!
    $41.95
  • Speed of the Bubble Tube Set

    Speed of the Bubble Tube Set
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    Three long plastic tubes containing colored fluids with different viscosities.
    $49.95