(Sarah of the Clue Crew pours the blue contents of a graduated cylinder into a beaker.)  Colored water, cooking oil & colored alcohol can be layered because each liquid has a different this, defined as mass divided by volume
Compound Removing Liquid Flammable Ethyl Alcohol Flammable 
Gasoline,... [DOC] [TLE] Full text of "Creative Childhood Experiences in Mathematics and ... [PAR] Preface Contents Page Section 1 Chapter 1 Chapter 2 Chapter 3 Section 2 ....