Science Fair Project Picked Out

After reading Science Fair Success Secrets by Bill Haduch, Son knows he wants to bake a bunch of cookies for his science fair project. We are going to buy four types of flour each: one super cheap, one popular brand, the brand I always use (I love King Arthur), and one ultra expensive, imported brand (yet to be identified). Then Son is going to compare the cookies from each brand by texture, taste, and other variables. Which cookies will turn out the best? What is his hypothesis? My vote is on King Arthur - heehee. The science fair project is due on January 11, 2012. We won't be baking until after Christmas, despite Son's eagerness.