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Project title The Effect of Acids and Alkalis on Bacterial GrowthFeatured science projectScience project video
Difficulty Level Middle school
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The purpose of this experiment is to find out whether bacterial growth is inhibited by either strong acids or strong alkalis, or even both. It is important for us to know about bacteria inhibition in order to develop more efficient antimicrobials. 

Instructions preview
1. For this experiment, the independent variable is the concentration of acid or alkali used. The dependent variable for this experiment is the diameter of the zone of inhibition of the bacteria on 2 types of bacteria cultures. In this experiment, there are a few aspects that are kept constant. For example, the amount of bacteria, the type and amount of blood agar, the environmental conditions for incubation and the length of time of incubation. 2. Prepare concentrations of 2%, 4% and 8% acids in different containers respectively. 3. Next, prepare concentrations of 2%, 4% and 8% bases in .....
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