Experiment in Water Heating with Synthetic Laundry Detergent for the Unit “Metal, water, air and temperature” in 4^th Grade Lower Secondary School Science

Abstract

The purposes of this study were to evaluate a store-bought synthetic laundry detergent as a teaching material, and to discuss the effectiveness of a water heating experiment through the practice in classroom. As a result of this study, the following 4 points were clarified. 1. Many children understood the water heating concept correctly through the experiment. 2. Many children who took the class understood well; one of the factors in the promotion of their enhanced understanding was the experimental teaching material. 3. Many children understood well by doing the experiment independently. 4. Teachers were satisfied with the class; again, one of the factors was the use of the experimental material.