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Examining the effect of temperature on bacteriaFeatured science projectScience project video

Conclusion

The experimental data and analyzed results support the hypothesis that bacteria will be destroyed and eliminated at temperatures above 60 degrees Celsius.

Most bacteria around us are harmless, and some of them are essential for processes such as decomposition and the nitrate cycle to occur. Bacteria are also required in bioremediation for sewage disposal, and to produce dairy products such as cheese and yogurt.

Also consider

Try to repeat this science fair project by exposing the Petri dishes to different temperatures and observe the effect on bacterial growth.

The experiment can be repeated using other species of bacteria such as the Staphylococcus or Campylobacter.
 

References

Bacteria - http://en.wikipedia.org/wiki/Bacteria

Introduction to bacteria - http://www.umsl.edu/~microbes/introductiontobacteria.pdf

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Complexity level:
7
Project cost ($):
50
Time required:
Preparation will take approximately one day, while observation and recording of data will be completed over a period of five days
Material availability:
Access to laboratory equipment (eg. petri dishes)
Safety concerns:

Always follow laboratory safety guidelines and always practice sterile technique when handling microbes. Never have any food or drink at your workstation and always thoroughly wash your hands with disinfectant soap or alcohol before leaving your workstation. Always dispose of used material in a biohazard bag. If none are available, the bacteria should be destroyed with bleach before being disposed of