The lava lamp exercise with the children of kebonsari urban village, citangkil sub-district is a fun and educational activity that involves making simple lava lamps using materials easily found at home. This study aims to explore the children's experience of the lava lamp experiment, and its impact on their understanding of basic chemistry concepts, and chemical interactions. Through a teaching approach based on simple science experiments and participatory observation, children were given the opportunity to experiment with a mixture of oil, water, and coloring agents to create interesting visual effects in their own lava lamps. The results showed that this practice not only increased children's interest in science, but also strengthened collaborative skills, and understanding of basic experimental concepts. This experiment highlights the importance of experiential and interactive learning approaches in developing childrens I nterest in science.

LP is one of the pharmaceutical companies located in Serang, Banten. The production of the company is tablets, capsules, and syrup. Problems that occur at PT. LP is a product defect that occurs in capsule filling, especially in capsule A. The purpose of this study is to determine the defective products that occur in capsule A and to find out the proposed improvements that will be made to reduce product defects in capsule A. The research methods used are Statistical Process Control (SPC)  and Fuzzy Failure Mode and Effect Analysis (F-FMEA). The population and samples used were defective capsule A during the production process from March 2022 to May 2023, with sampling techniques through production data, observation and interviews. And the results of research using a check sheet show that the percentage of defects reaches 6%, based on the pareto chart, the priority of improvement that needs to be done is for the dominant type of defect, namely  the dented capsule reject reaches 90%, and on the control chart there are still control points that are outside the UCL and LCL. FMEA calculations, the RPN value of the capsule is dented on the head of the capsule or capsule body reaches 384, and the FRPN value is 6.76.

 
 

Cinangka Village is a village in the Cinangka District that has the greatest economic potential in the plantation sector, especially coconut production. The potential yield of coconut plants in Cinangka Village contributes to coconut production so that in 2021 Cinangka District can produce 1113.75 tonnes of coconut crops. The results of this coconut production are distributed to meet consumption needs in the tourism sector. The high consumption of coconut fruit has an impact on the high amount of coconut husk waste produced. The method for implementing these KKM-PkM activities uses participatory counseling methods, where this counseling is carried out by providing verbal and visual counseling. The results of KKM-PkM activities have had a positive impact, namely increasing public knowledge and awareness about the benefits of utilizing coconut husk waste into coconut husk powder (cocopeat) which is used as a planting medium using hydroponic techniques. Apart from that, if the utilization of coconut husk waste management is carried out on a massive scale supported by the use of coconut husk grinding machines, it can directly increase the income of the people of Cinangka Village.