Home
+
Products
+
Services
+
Support
 
References
 
Downloads
 
Contact Us
 
Company Profile

Introduction

It is possible to illustrate how liquids of different densities float atop one another.
  • Prepare a saturated solution of sodium chloride
  • Divide the saturated solution into 3 cups (A, B and C) equally
  • Cup A is a 100% saturated sodium chloride solution
  • Add 50% water by volume to cup B to make up a 66% sodium chloride solution
  • Add 100% water by colume to cup C to make up a 33% sodium chloride solution
  • Prepare a cup D of pure water
  • To cup A, add Blue food dye
  • To cup B, add Orange food dye
  • Leave cup C uncolored
  • To cup D, add Cochinea Red food dye
  • Prepare a clean empty glass test tube
  • Use a plastic pipette and drip a few drops of blue dyed sodium chloride solution from cup A into the test tube
  • Drip a few drops of orange dyed sodium chloride solution from cup B into the test tube
  • Drip a few drops of clear sodium chloride solution from cup C into the test tube

  • Drip a few drops of Cochinea red dyed water from cup D into the test tube

  • Observe the colors of the different layers separated by density
Last updated on 22 May 2013