Enhancing Students' Scientific Explanations through Project-Based Worksheets on Biopesticide Production from Soursop Leaf Extract Rizqi Firdaus Alfarizi, Nurhayati Nurhayati, Neneng Windayani, Risa Rahmawati Sunarya, Muhamad Ali Nurdin, Laila Humairoh Jurnal Pendidikan Kimia FKIP Universitas Halu Oleo Vol. 11 No. 2 2026 DOI 10.36709/jpkim.v11i2.243