(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
... Alcohol 
... From the colored water and cooking oil classroom demonstration, explain why 
the... [DOC] [TLE] CPO Focus on Physical Science eBook [PAR] different phases that we call solid, liquid, and gas.