Bacteria Multiplication Rates Graphing Activity by Miss Middle School Teacher
In this lab, students will be able to:
-Calculate and graph the growth of bacteria under different environmental conditions.
-Explain the role of the environment in the spread of disease.
I use this to help middle school students understand just how quickly bacteria can reproduce and how the environment can affect the growth rates. The lab provides students with an example of e.coli reproducing under 'ideal conditions' every 15 minutes. Students must calculate how much bacteria there will be after 4 hours. They do the same for 'less than ideal conditions' and make a line graph of both. From there, they compare the two graphs, draw conclusions and make inferences.