Answering my main inquiry question is the whole point of the project and I did that after a lot of hard work. It was definitely hard explaining it.
To answer my main question (What is the science behind Play Doh; how is it more than just a toy for kids?) I had to read and take notes on lots of articles, have an interview and site visit, watch some videos and have some sub questions. All of this work comes together to answer my main question.
I have learned a lot while doing this project. Play Doh definitely has a lot more to it than you think.