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All Journal Edufisika: Jurnal Pendidikan Fisika Journal of Innovation in Applied Natural Science
Arifia, Amanda Fajar
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Aerospace Engineering Agriculture, Biological Sciences & Forestry Astronomy Biochemistry, Genetics & Molecular Biology Chemical Engineering, Chemistry & Bioengineering Chemistry Education Energy Environmental Science Immunology & microbiology Materials Science & Nanotechnology Mathematics Physics

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PENGEMBANGAN LKPD BERBASIS PROYEK PENGOLAHAN LIMBAH KULIT NANAS UNTUK MELATIHKAN CREATIVE THINKING SKILLS DAN SELF-REGULATED LEARNING Arifia, Amanda Fajar; Herlina, Kartini; Viyanti , Viyanti
EduFisika: Jurnal Pendidikan Fisika Vol 10 No 1 (2025): EduFisika: Jurnal Pendidikan Fisika Volume 10 Nomor 1 April 2025
Publisher : Program Studi Pendidikan Fisika FKIP Universitas Jambi

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.59052/edufisika.v10i1.43595

Abstract

This study aims to develop a valid and practical project-based learner worksheet to train creative thinking skills and self-regulated learning on alternative energy material. This type of research is Design and Development Research (DDR) adapted from Richey & Klien (2007) using validity test consisting of empiric validation and expert validation, as well as practicality test consisting of readability test, teacher perception test, and learner response test, the effectiveness test consists of the results of the analysis of trained creative thinking skills and self-regulated learning in small groups. The results of the empiric validation test are seen based on the success of the biobattery product turning on the LED in a particular circuit. On the results of the expert validation test, obtained an average score from the three experts of 3.24, with the average score on the media and design aspects obtained at 3.32 with very valid category, and the material and construct aspects obtained at 3.15 with a valid category. The results of the practicality test obtained an average score for the readability test of 83.8% with a very practical category, the teacher perception test of 87.3% with a very good category, and the learner response test of 84.7% with a very good category, obtained an average practicality test score of 85.3% with a very practical category. The effectiveness test was seen based on the results of the analysis of trained creative thinking skills obtained the results of 81% and the analysis of trained self-regulated skills.
Performance Analysis of Bio-batteries from Organic Waste for Alternative Electric Energy Nata Raharjo, M. Arya; Arifia, Amanda Fajar; Herlina, Kartini
Journal of Innovation in Applied Natural Science Vol. 1 No. 1 (2025): Journal of Innovation in Applied Natural Science
Publisher : CV Media Inti Teknologi

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.58723/jinas.v1i1.16

Abstract

Background of study: Biobatteries are an innovative form of renewable energy technology that utilize organic materials to produce electricity through electrochemical reactions. Organic waste such as banana and pineapple peels contains natural electrolytes, making them potential sustainable and eco-friendly energy sources.Aims and scope of paper: This study aims to evaluate the performance of simple biobatteries using banana and pineapple peels as electrolyte materials. The research focuses on measuring voltage and current generation over seven days and assessing the stability and durability of each type of organic waste.Methods: Biobatteries were assembled using zinc (Zn) electrodes as the anode and carbon rods as the cathode. The peels were ground into a paste and used as the electrolyte. Daily measurements of voltage and current were taken for seven consecutive days to analyze performance trends.Result: Test results showed that both types of biobatteries were capable of producing sufficient voltage and current to power simple electronic devices such as small LEDs, wall clocks, and basic household appliances. However, biobattery performance decreased over time due to water evaporation, degradation of active compounds, and environmental influences such as temperature and humidity. Overall, banana peels performed more consistently than pineapple peels.Conclusion: This research demonstrates that organic waste can serve as a viable material for renewable energy generation. Biobatteries made from fruit peels not only help reduce waste but also have potential for educational use and community energy initiatives.
Co-Authors Herlina, Kartini Nata Raharjo, M. Arya Viyanti , Viyanti