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By Sydney Snyder and Nikita Jagdish
Block 7
04/10/15
Procedure
Materials
If we design an experiment in which bacteria is observed fluorescent, incandescent, and no light, the bacteria under the incandescent light will grow the fastest.
The purpose of this study was to investigate how different types of light would affect bacterial growth. The independent variables are the different types of light. The dependent variable is the amount of bacterial growth.
Our data supported our hypothesis since the bacteria under the incandescent lights grew the most. The reason for this might have been because of the increased temperature. Bacterial growth seems to be affected by how much energy the light is giving off. The incandescent lights were both brighter and hotter. Many studies have found that brighter lights cause the bacteria to grow slower, but the heat makes it grow faster. Our project would've been more accurate if all the petri dishes were under the same temperature and the bacteria was spread more evenly. We found that the hotter and brighter light will cause the bacteria to grow faster. This information can be used to manipulate bacteria into growing faster or not growing at all. New experiments can be done to find how different colors and wavelengths of light affect bacterial growth.
Works Cited
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