How sound affects bacterial growth
Effects of Music on Bacterial Growth
Kira Lewitt and Kaitlyn Carroll
December 2014
Chemistry 1B
Grady High School
Table of Contents 1.
Introduction
2.
Materials/ Method/ Procedure
3.
Data/ Observations
4.
Discussion of Results
5.
Conclusion
6.
Practical Application
7.
Future Expansion
9.
Bibliography
Introduction Question: What genre of music affects the growth of bacteria the most? Problem: Effects of music on Bacterial Growth Hypothesis: If three genres of music were played to the same samples of bacteria, then the sample with pop music playing to it will have the most growth because pop music has a more positive and upbeat rhythm to it causing the bacteria to grow more. Variables:
Control: The petri dish of bacteria without music and the samples of bacteria.
Independent Variable: The type of music played to each sample.
Dependent Variable: The growth of bacteria in each sample.
Constant: The temperature and location, volume of music, and the time frame music is played at night.
Background Information:
Sound travels through waves, which are created by the vibration of an object which causes the air surrounding it to vibrate. These waves are unique to each sound you hear meaning they will have different patterns of vibration. As the speaker vibrates from emitting the music, the surrounding molecules vibrate as well in the same unique pattern affecting the growth of the
bacteria in a specific way (http://www.mediacollege.com/audio/01/soundwaves.html). Although bacteria lack the ability to hear music, it is still able to feel the changes in vibrations and can grow differently from that
(http://www.education.com/sciencefair/article/musicbacteriaenjoymost/). When bacteria are placed in an environment where the nutrients that are needed for growth
Kira Lewitt and Kaitlyn Carroll
December 2014
Chemistry 1B
Grady High School
Table of Contents 1.
Introduction
2.
Materials/ Method/ Procedure
3.
Data/ Observations
4.
Discussion of Results
5.
Conclusion
6.
Practical Application
7.
Future Expansion
9.
Bibliography
Introduction Question: What genre of music affects the growth of bacteria the most? Problem: Effects of music on Bacterial Growth Hypothesis: If three genres of music were played to the same samples of bacteria, then the sample with pop music playing to it will have the most growth because pop music has a more positive and upbeat rhythm to it causing the bacteria to grow more. Variables:
Control: The petri dish of bacteria without music and the samples of bacteria.
Independent Variable: The type of music played to each sample.
Dependent Variable: The growth of bacteria in each sample.
Constant: The temperature and location, volume of music, and the time frame music is played at night.
Background Information:
Sound travels through waves, which are created by the vibration of an object which causes the air surrounding it to vibrate. These waves are unique to each sound you hear meaning they will have different patterns of vibration. As the speaker vibrates from emitting the music, the surrounding molecules vibrate as well in the same unique pattern affecting the growth of the
bacteria in a specific way (http://www.mediacollege.com/audio/01/soundwaves.html). Although bacteria lack the ability to hear music, it is still able to feel the changes in vibrations and can grow differently from that
(http://www.education.com/sciencefair/article/musicbacteriaenjoymost/). When bacteria are placed in an environment where the nutrients that are needed for growth
Bibliography: http://www.noiseandhealth.org/text.asp?2013/15/66/307/116568 Effect of sound on living organisms. (2014, January 1). Retrieved December 4, 2014, from http://www.metabolomics.auckland.ac.nz/index.php/projectstop/28 Eital, B. (2006, January 1). What Music Does Bacteria Enjoy the Most? Retrieved December 4, 2014, from http://www.education.com/sciencefair/article/musicbacteriaenjoymost/ How Sound Waves Work. (n.d.). Retrieved December 4, 2014, from http://www.mediacollege.com/audio/01/soundwaves.html Kadner, R. (2014, January 1). Growth of bacterial populations. Retrieved December 4, 2014, (2010, June 1). Retrieved December 4, 2014, from http://www.spiegel.de/international/zeitgeist/symphonicsewagewastetreatmentplantplays