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All Journal Lantanida Journal Journal of Educational Chemistry (JEC)
Rahmawati Sunarya, Risa
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Chemical Engineering, Chemistry & Bioengineering Chemistry Education

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Project-Based Learning in Creating Edible Straws from Red Dragon Fruit Peel to Develop Science Process Skills Khalda, Nida; Rahmawati Sunarya, Risa; Aisyah, Riri; Dahriah, Iis
Journal of Educational Chemistry (JEC) Vol. 7 No. 1 (2025)
Publisher : Department of Chemistry Education, Faculty of Science and Technology, Universitas Islam Negeri Walisongo Semarang

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.21580/jec.2025.7.1.26563

Abstract

This study aimed to analyze the implementation of project-based worksheets utilizing red dragon fruit peel waste (Hylocereus polyrhizus) to develop students’ science process skills (SPS). The research employed a pre-experimental method with a one-shot case study design, conducted at a vocational high school in Cimahi City, involving 31 senior high school students from Class XI Industrial Chemistry-C. The research instruments consisted of student activity observation sheets, project-based worksheets, and SPS performance sheets. The results showed an average student activity score of 95%, a cognitive SPS score of 90%, and a psychomotor SPS score of 96%, all categorized as “excellent.” Hence, the project-based worksheet on producing edible straws from red dragon fruit peel waste was proven to be highly feasible and effective in developing students’ SPS.
INTEGRATING POMEGRANATE PEEL WASTE-BASED LIP BALM PROJECTS INTO COLLOID CHEMISTRY LEARNING: A PROJECT-BASED APPROACH TO STUDENTS’ ENVIRONMENTAL LITERACY Rahmawati Sunarya, Risa; Sukmawardani, Yulia; Muazaroh, Kaffatiya Najmii; Sumawardani, Yulia; Sari; Dahriah, Iis; Ali Nurdin, Muhammad
Lantanida Journal Vol 14 No 2 (2026): July-December 2026
Publisher : UIN AR-RANIRY

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.22373/lj.v14i2.35052

Abstract

Senior high school students often face difficulties in translating environmental knowledge into concrete environmental behaviors, and organic waste like pomegranate peels remains underutilized in chemistry learning. This study aims to analyze students' environmental literacy through project-based worksheets (PjBL) using pomegranate peel waste for lip balm production in colloid chemistry. A pre-experimental one-shot case study involved 18 eleventh-grade students in Bandung, Indonesia. Selected through a purposive sampling technique. Data were collected using project-based worksheets, assessment rubics for student work and environmental literacy instruments. Results showed worksheet scores at 89.5 (very good). Environmental literacy scores were: environmental knowledge 81.2 (very good), cognitive skills 89.3 (very good), environmental attitude 82.0 (very good), and environmental behavior 79.3 (good). The findings indicate that PjBL-based activities supported students' engagement with contextual colloid chemistry concepts. However, the lower environmental behavior score (79.3) compared to other domains indicates a gap requiring further intervention. Overall, PjBL shows promise for developing environmental literacy by integrating chemistry learning with waste utilization.  
Co-Authors Ali Nurdin, Muhammad Dahriah, Iis Khalda, Nida Muazaroh, Kaffatiya Najmii Riri Aisyah, Riri Sari Sumawardani, Yulia Yulia Sukmawardani, Yulia