The Honors Biology Class wanted to research the type of soil in an area on the side of the school called a Swale. The students collected dirt from different areas, wet and dry, to calculate the pH, nitrogen, potassium, and phosphorus concentration.
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| Students collect samples from a dry area of the ground that is higher in the Swale. |
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| Students collect samples from a wet area, on the lower land of the Swale where rain settles. |
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| The pH of the dry area seems to be around a 7, because it has been less exposed to acid from rain. |
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| The pH in the wet area is more acidic, at about a 6.5, because rain has been settled there for a longer period of time. |
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