Removing oil from water depends on materials that soak it up. Polypropylene pads do that job during spill response, but the water around a spill often contains detergent — and detergent may change how well the pads absorb oil. This experiment mixes engine oil and water, adds one of four detergents (Tide, Wisk, Jet Dry, or Dawn), then places a polypropylene pad in the mixture. Weighing the pad before and after shows exactly how much oil it absorbed. A control test with no detergent gives the baseline. The results reveal whether detergent helps or blocks absorption.

When a material soaks up a liquid and holds it inside, that is absorption in action. Polypropylene pads work this way during oil spill cleanup — they draw oil out of water and trap it inside. Adding detergent to the mixture, though, may change everything. The question is whether detergent helps the pads soak up oil more effectively, or whether it blocks absorption altogether.

Engine oil is difficult to remove once it enters water, but polypropylene pads can soak it up during spill cleanup. The question is whether adding detergent to the water changes how well those pads work. You mix engine oil and water in a container, then add one of four detergents — Tide, Wisk, Jet Dry, or Dawn. After the mixture settles, you place a polypropylene pad in it, then weigh the pad before and after to measure oil absorption. A control test with no detergent shows the baseline, and the results reveal whether detergent helps or blocks absorption.

Oil spills put harmful oil into the water — and cleaning them up is not simple. Polypropylene pads are one tool used to soak up oil during spill response, but adding detergent to the water might change how well they work. You mix engine oil and water in a container, add one of four detergents (Tide, Wisk, Jet Dry, or Dawn), then place a polypropylene pad in the mixture. Weighing the pad before and after shows how much oil it absorbed. A control test with no detergent provides the baseline. The results reveal whether detergent helps or blocks oil absorption.