Abstract

The topic for this science fair project is about mold on bread. I selected this topic because the bread at my house mold's in 2 weeks. The problem question is; does light or darkness affect the growth of mold? This will help people by telling them where to keep their bread. I examined my online fair and found some sources to help my experiment. My first source is “Bread Mold Discovery”  by Josiah Galvante. He tested which of the following would make bread mold the fastest: hand sanitizer, disinfectant wipes, and hand soap. The hand sanitizer made the bread mold the most because it doesn't get all the places in the bread and made it  more soggy. This helped me by telling me that if something is moist it will mold quicker. My hypothesis is that if bread is placed in dark, light, or a mix of light and dark space, then the light space will have the most mold because the light will fuel the molds energy. My problem question is; does light or darkness affect the growth of mold?

               The materials I used are 3 slices of brown bread, 3 slices of white bread, a laptop, a data table, 6 paper towels, 3 boxes, 2 lamps, and plastic wrap. I will be testing mold on bread. Put one slice of each kind of bread  in the dark, in the light, or a mix of both light and dark. After two days, measure in centimeters how much mold it has on it and write it down The white bread in the box with the light grew no mold, but the brown bread grew 2.0cm of mold. In the box that was the dark and the light the white bread grew no mold, meanwhile the brown bread grew 2.4cm of mold.

               The hypothesis was not correct because the bread in the light and dark grew the most mold.  I could have put a light inside the box instead over the box. I also could have used petri dishes instead of paper towels and plastic wrap. These would have been helpful because the light would have aided the mold and the petri dishes would have used less materials. I should have checked the mold every day so I could have gotten more results.