Squeaky Clean

The purpose of Battani and Copeland's investigation was to measure the quality of homemade soaps when varying the contents and to compare these results to "store-bought" brands. Battani and Copeland made soap using lye, ethyl alcohol, sodium chloride and a type of oil. They used a basic procedure to make their soap. The procedure involved boiling a solution of ethyl alcohol, lye and oil in a dish. That solution was cooled and then poured into water to remove any remaining lye. Sodium chloride was then added and the final product was formed. Two tests were used to compare the soaps. One test measured how long the soap suds lasted, and the other test evaluated how well each soap cleaned. The results of the investigation support the hypothesis that Battani and Copeland predicted. Overall, the store-bought soaps produced the most suds and cleaned the best.

Research Done By:

Kelli Battani

Christine Copeland
Warren Woods Tower