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All Journal Jurnal Pendidikan Ilmu Pengetahuan Alam (JP-IPA)
Fata, Raihan Alimul
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Biochemistry, Genetics & Molecular Biology Chemistry Education Physics

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Analisis Tentang Pengaruh Intensitas Cahaya pada Pertumbuhan Kacang Hijau (Vigna Radiata) Fata, Raihan Alimul; Prayogo, Muhammad Suwignyo; Febrian, Valentino Rahma; Nurohim, Ahmad
Jurnal Pendidikan Ilmu Pengetahuan Alam (JP-IPA) Vol 6, No 2 (2025): November 2025
Publisher : STKIP HARAPAN BIMA

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.56842/jp-ipa.v6i2.557

Abstract

 This study aims to describe the implementation of the Problem-Based Learning (PBL) model in fostering critical thinking skills among third-grade elementary school students on the topic of metamorphosis. This research employs a qualitative descriptive approach with a descriptive study design. The research subjects consisted of 29 male students from Grade III of SD Aulia Cendikia Islamic School. Data were collected through direct observation, documentation, interviews, and student reflections. Data analysis utilized Miles and Huberman’s interactive analysis model, which includes three stages: data reduction, data display, and conclusion drawing. In the data display stage, the findings were presented in the form of descriptive narratives, tables, and direct quotations from students or teachers. Meanwhile, the conclusion drawing stage was conducted by examining the relationship between the implementation of the PBL model and the emergence of students’ critical thinking responses during the learning process. The results of the study indicate that the implementation of the PBL model positively influenced the development of students’ critical thinking skills. This can be seen from the students’ ability to identify, analyze, and find solutions to the given problems. The model also successfully enhanced students’ understanding of the learning material. Therefore, PBL proved to be an effective approach in shaping active, independent, and critical-thinking students.
Pengaruh Larutan Cuka Terhadap Struktur dan Kekerasan Tulang Ayam Fata, Raihan Alimul; Prayogo, Muhammad Suwignyo; Febrian, Valentino Rahma; Anugraini, Putri Salsabilah; Nurohim, Ahmad
Jurnal Pendidikan Ilmu Pengetahuan Alam (JP-IPA) Vol 6, No 2 (2025): November 2025
Publisher : STKIP HARAPAN BIMA

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.56842/jp-ipa.v6i2.769

Abstract

This study aims to determine how vinega solution affects the structure and hardness of chicken thigh bones. Bones are composed of two main materials, namely calcium carbonate, which provides strength, and collagen, which makes them slightly flexible. When bones are immersed in a vinegar solution containing acetic acid, a chemical reaction called decalcification occurs, which is the dissolution of calcium carbonate from the bones. As a result, bones that were originally hard lose their mineral composition and become more flexible and easier to bend because only elastic collagen tissue remains. In the experiment, chicken bones were soaked in vinegar for five days, then changes in color, texture, and bone hardness were observed. The results showed that the bones became softer, paler in color, and less likely to break when bent. Through this experiment, it was understood how a simple chemical reaction can change the physical properties of hard objects such as bones, as well as providing insight into the importance of calcium in maintaining bone strength. This experiment also taught the close relationship between chemistry and biology in practical terms in everyday life.
Co-Authors Anugraini, Putri Salsabilah Febrian, Valentino Rahma Nurohim, Ahmad Suwignyo .