The Emulsion Test is a standard laboratory method taught in the IGCSE syllabus to detect fats in food samples. Recently, our IGCSE students at Templer Park International School Rawang (TPIS) carried out this experiment to apply their understanding of chemical properties through direct observation and hands-on investigation.

The aim of the experiment was to determine whether a food sample contains fat (lipid).

To conduct the test, students used food samples, methanol, water, and test tubes. All procedures were carried out under teacher supervision, in accordance with laboratory safety guidelines at TPIS.

During the experiment, students mixed the food sample with methanol in a test tube and shook it thoroughly. Water was then added to the mixture, and students carefully observed any changes in the appearance of the liquid.

A milky or cloudy liquid indicated that fat was present in the food sample, while a clear liquid showed that no fat was detected. This clear visual change made it easy for students to identify, record, and discuss their results with confidence.