I am working on a science fair project, and I currently need to develop a hypothesis. I am having a little trouble, but I have some ideas. I just need one answer so that I can go on about this. I would just like to know if when you put different frequency sound waves into water, do they create bubbles/air pockets?
EDIT: I have talked to some people, and have decided to talk about surface tension. No further comments or answers are necessary.