Science Fair Project?

I'm not too sure if this is in the right place, but my science fair project is being done on Flower Petal Indicators (in simple terms, determining what molecule gives flower petals their color/acid %26amp; base thing) My problem is that I have a rough draft due tomorrow and I'm not too sure on what else I can write my paper on. I need around 3 pages. I already have a chunk of information on acids and bases and the pH scale, but it isn't enough for 3 pages. I also need 2 more sources for my bibliography because the minimum is 5 and I have 3. Help? D=

Science Fair Project?
How about adding some information on flower petals themselves. you also might include some infromation on why colored petals are good for plants. Some times the color of the petals attracts insects that pollinate it. Again go into why petals have color, and some of that background information.
Reply:Plastids (chromoplasts) are the pigment holding bodies and contain carotinoids which can be red, orange or yellow. Emial if you need more.