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Soil Pollution Science Fair Project

Absorption of Pollutants in Soil

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Absorption of Pollutants in Soil | Science Fair Projects | STEM Projects
In this experiment, we'll be testing which type of soil is most absorbent of liquid pollutants. We'll measure the amount of pollutants that filter through 250 mg of soil, and compare the results.

Hypothesis

The hypothesis is that the soil with less porosity will be most absorbent.

Method & Materials

You will measure the amount of pollutants that filter through 250 mg of soil, and compare the results for different types of soil and pollutants.
You will need a plastic filter, sand, clay, oil, gasoline, antifreeze, plastic cups, a graduated cylinder, scratch paper, and a stopwatch.

Results

The results of the experiment showed that the oil and clay combination was the most absorbent, with an average of 220.33mL of oil, 112.33mL of antifreeze, and 132.33mL of gasoline absorbed. The sand absorbed an average of 126mL of oil, 146.33mL of antifreeze and 138mL of gasoline.

Why do this project?

This science project is interesting because it can help farmers, gardeners, and botanists better understand absorbency in different types of soil, which can help them with soil pollution problems.

Also Consider

Variations to consider include testing different types of pollutants, and testing different amounts of soil.

Full project details

You can find additional information and details for this science fair project here. Have fun exploring!
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