First get two aquariums. In the first one, fill it with 1/2 a gallon of water and then add the glycerin soap mixture.
In the second aquarium you should also have a gallon of water and the other materials should be normal as well.
The question you should ask is:
Does water have an affect on the solution that will not allow the soap film to create shaped on the dimension shapes?
In this project we want to see if the affect of the water will affect the solution and cause the soap film to not create the bubble as durable as it should be.
First instead of having the 1/2 of dish washing soap have a separate cup .
Have two different aquariums and make sure one has its own cup of dish washing soap and the other with the normal 1/2 cup.
For this project we want to see if this prevented the soap film from forming.