Density

Olive oil: 918kg
Soy sauce: 927
Honey: 1420kg
These liquids were able to separate into layers because the refrigerator temperature caused the liquids to rise and there densities determined the outcome of what order they were in. Another aspect that could have determined the layers were the position the three liquids were already in when put into the fridge for 2 days.


http://physics.info/density/