Utilization Of Colored Flowers as An Alternative Learning Media of Acid Base Indicator On Basic Chemistry Course With Green Chemistry Insight

Using of natural product like colored plants or flowers as a medium for learning chemistry can realize of green chemistry principles by applying one or several of its principles. One of the principles of green chemistry that can be raised in basic chemistry learning is "use renewable feedstock". Chemistry as a science that based on experiments is inseparable from laboratory activities that require chemicals in the implementation of its activities. Actually chemistry is very close to the student daily lives. Therefore learning is designed by utilizing natural product around us for chemistry learning. Indonesia has biodiversity that potentially to be used in all fields, including in learning. One way is to utilize various types of colored plants or flowers that can found around students' lives in the territory of Indonesia as an indicator of acid and base. The research method is followed the steps of research and development. Development of learning tools with green chemistry insight for basic chemistry courses. One of them is learning media as a component of learning tools by utilizing plant or colored flowers as chemical materials in practicum which can realize green chemistry insight in learning. Based on the results and data analysis from this study, several colored flowers were identified their pH stretch and potentially to be used as natural acid base indicator in chemistry learning. Some of the colored flowers are; Hibiscus rosa sinensis, Bougainvillea glabra, and Ipomea ficifolia. It is recommended to develop this study for other plants or flowers. By utilizing natural materials as a medium for chemistry learning, it can realize green chemistry based learning by applying one of its principles Keywords—green chemistry, natural acid and base indicator,