Code Number: 2C60.50

Demo Title: Fluids vs. Solids - Sand

Condition: Excellent

Principle: Properties of sand.

Area of Study: Fluids

Equipment:

 Sand, 1 gallon Ziploc bag, Plastic Beaker.

Procedure:

 Is sand a solid or a liquid?  It flows like a liquid, conforms to the shape of its container like a liquid, yet is normally considered a solid. 

References:

  • "Fluid Flow Disruption", TPT, Vo. 52, # 8, Nov. 2014, p. 454.
  • Camilla M. Saviz, Said Shakerin, "Serious Fun: Using Toys to Demonstrate Fluid Mechanics Principles", TPT, Vol. 52, # 6, Sept. 2014, p. 332.
  • Sung Chang, "Once-baffling success of granular resistive force theory explained", Vol. 69, #11, Nov. 2016, p. 22.
Unstable Kolmogorov Flow in Granular Matter