Embedded Files
BACKGROUND RESEARCH
Before conducting this experiment, we compared data taken in each of the four sites to each other where we noticed an inverse relationship between the aluminum and bacteria levels in Site 2 as well as a direct relationship between the soil's neutral/slightly acidic pH (5-7 range) and the bacteria levels there. To see if our discovery could be backed by prior experiments and findings, we followed up with lots of background research in which we found that there is a correlation between aluminum and bacteria as well as one with pH and bacteria. According to one experiment, "bacteria w[as] able to survive on acid medium with [a] pH [of] 5" and it was also concluded that "the higher the concentration of aluminum, the slower [the] bacterial growth rate (Kurniawan, S. B., Purwanti, I. F., Titah, H. S. 2018).
WHAT IS ALUMINUM?
Aluminum is a silvery-white, lightweight metal and element that is generally abundant in soil. Its availability to plants, however, is reliant on the pH of the soil.
WHAT IS BACTERIA?
Bacteria are unicellular organisms. Bacterial growth rate is affected positively by a slightly acidic to a neutral pH and negatively affected by high aluminum levels.
WHAT IS pH?
Potential Hydrogen or 'pH' is a scale that indicates the acidity or alkalinity of a substance.
Page updated
Google Sites
Report abuse