Soil Infiltration: Soil porosity testing

Images from Animation

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Contaminants can hold on to, or sorb, the clay and organic matter that is suspended in muddy-looking waters.

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We’ll pretend this dye is a contaminant and pour it onto the soil to see what happens during infiltration.

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Scientists take samples at different times of the year to understand the impact of high water, low water, freezing and thawing on the movement of contaminants.