Rainbow in a Glass
Here is a simple way to take several household items and make different layer of liquids!
A cup of dark corn syrup or honey
A cup of dishwashing liquid
A cup of water
A cup of vegetable oil
A cup of rubbing alcohol
A tall glass or clear plastic cup
Two other cups for mixing
Just want to added the liquids one by one into the tall glass.
For coloring you can use food colors for different layer.
Remember to add each very slowly and to tint each clear liquid with some food coloring.