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Natural Science: Jurnal Penelitian Bidang IPA dan Pendidikan IPA
Published by Universitas Islam Negeri Imam Bonjol Padang
ISSN : 24776181     EISSN : 2715470X     DOI : -
Core Subject : Science, Education,
Chemistry Earth & Planetary Sciences Education Physics Other
Jurnal Natural Science ini memuat artikel yang membahas aspek pendidikan Fisika, metode, model pembelajaran IPA Fisika, inovasi-inovasi pembelajaran, perangkat pembelajaran, dan aspek fisika murni. Tim redaksi menerima artikel ilmiah dari hasil penelitian, laporan studikasus, kajian dan tinjauan pustaka. Terbitnya jurnal pendidikan ini menjadikan suatu indikator bahwa prodi Tadris IPA Fisika sangat peduli terhadap perkembangan dan inovasi-inovasi pada bidang sains terutama pendidikan Fisika. Selain itu adanya Jurnal Natural Science menunjukkan bahwa para dosen Tadris IPA Fisika sudah membudayakan meneliti dan mempublikasikan hasil penelitian. Jurnal studi pendidikan fisika juga mengajak pihak lain berpartisipasi dalam penerbitan jurnal baik universitas local maupun tingkat nasional dan bahkan internasional. Penerbit : Fakultas Tarbiyah dan Keguruan Universitas Islam Negeri Imam Bonjol Padang
Arjuna Subject : Ilmu Sosial - Pendidikan
Articles 138 Documents
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Isolasi dan Identifikasi Molekuler Bakteri Asam Laktat pada Dadih dengan Menggunakan Gen 16S rRNA Alfina Yuliana; Minda Azhar
Natural Science: Jurnal Penelitian Bidang IPA dan Pendidikan IPA Vol 8, No 1 (2022)
Publisher : Universitas Islam Negeri Imam Bonjol Padang

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.15548/nsc.v8i1.3261

Abstract

Dadih is a food product that is naturally fermented from buffalo milk which contains lactid acid bacteria. Determination of the genus or species of bacteria can be identified molecularly. Bacteria can be identified by phenotype and genotype. This study aims to determine the genus or species of lactic acid bacteria in dadih. Identification of lactic acid bacteria was carried out by isolating lactic acid bacteria from the dadih, then isolating the chromosomal DNA of bacterial isolate that had been obtained. Gene of 16S rRNA was amplificated using the Polymerase Chain Reaction (PCR) method with forward BactF1 and reverse UniB1 primers. The PCR amplicon was sequenced using the Dideoxy-Sanger method with a forward BactF1 primer. Sequencing data was read with the BioEdit program. The size of the 16S rRNA gene fragment obtained was 1040 bp. Analysis of the nucleotide base sequence of the 16S rRNA gene fragment showed that the isolate UBC-DTK-02 belonged to the Enterococcus genus and Enterococcus faecalis spesies.
Meta-analisis Penerapan Model Process Oriented Guided Inquiry Learning (POGIL) dalam Pembelajaran IPA Ikwan Wahyudi
Natural Science Vol 8, No 2 (2022)
Publisher : Universitas Islam Negeri Imam Bonjol Padang

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.15548/nsc.v8i2.3751

Abstract

This study is a meta-analysis to determine the effect size of the POGIL model in science learning and its variations. Articles were prepared according to PRISMA guidelines based on inclusion criteria. The results of the feasibility assessment set 31 studies for analysis. Meta-analysis was carried out with the CMA program. The effect size is determined by the Hedges' g equation in the random-effects model. The results showed the overall effect size was 1.225 (95% CI [1.028; 1.422]), indicating a positive effect of the POGIL model compared to the conventional model. Analysis of the level of variation resulted in significant differences in the research location and the content of the science material. The variables of education level, media, and types of science learning outcomes did not show significant differences. The results of this meta-analysis show that the POGIL model can be applied to science learning to train students' various thinking skills.
Effect Size : STEM pada Pembelajaran IPA Terhadap Keterampilan Abad 21 Raudhatul Jannah; Lufri Lufri; Asrizal Asrizal; Sandijal Putra Putra
Natural Science Vol 8, No 2 (2022)
Publisher : Universitas Islam Negeri Imam Bonjol Padang

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.15548/nsc.v8i2.4227

Abstract

The study used a meta-analysis with the aim of measuring the effect of STEM on science learning on 21st century skills. The number of articles obtained in this study was 25 articles. These results show that 1), the STEM approach to 21st century skills is very effective for students. 2), the level of education, STEM has a high effectiveness on 21st century skills. 3), the use of learning models in STEM is effective for 21st century skills. So it is concluded that STEM in IPA learning against 21st century students' skills is effectively used
Efektivitas Model Pembelajaran ATI Dalam Pembelajaran Sains Di Universitas Graha Nusantara Padangsidimpuan Rizky Febriani Pohan; Muhammad Rahman Rambe
Natural Science Vol 8, No 2 (2022)
Publisher : Universitas Islam Negeri Imam Bonjol Padang

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.15548/nsc.v8i2.4134

Abstract

The Aptitude-Treatment Interaction (ATI) learning model is a learning model that has a number of strategies (treatments) used to deal with each particular individual according to their respective ability levels in order to improve student learning outcomes. This study aims to determine the effect of the application of the ATI learning model on student learning outcomes in science learning and to determine the effectiveness of the ATI learning model in science learning. The sample of students studied were students of the Civil Engineering Study Program, Faculty of Engineering, Graha Nusantara University, which consisted of 2 groups. The first group was used as the experimental group (teaching with ATI) and the second group as the control group (teaching without ATI) with the number of students in each group = 20 people. The research design used was a 2x2 quasi-factorial experimental design. The data obtained were analyzed by chi-square test at a significance level of 0.05. The results showed that the experimental group's science learning outcomes increased by 49.17%, while the control group's science learning outcomes only increased by 42.25%. Thus, the ATI learning model has an effectiveness percentage of 1.67%. With the chi-square test, it can be stated that this effectiveness is due to the influence of the application of the ATI learning model.
Kesiapan Kantin di PTAIN Sumatera Barat Menuju Kantin Bersertifikasi Halal Media Roza; Sabhamis Sabhamis; Nurhasnah Nurhasnah; Milya Sari
Natural Science Vol 8, No 2 (2022)
Publisher : Universitas Islam Negeri Imam Bonjol Padang

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.15548/nsc.v8i2.4415

Abstract

UU No. 33 of 2014 concerning Halal Product Guarantee (JPH) is implemented mandatively starting in October 2019 of all products circulating in Indonesia, including food. Therefore, every business actor in the industry, restaurants, cafeterias or canteens must prepare themselves to carry out halal certification of the products being sold. This study aims to determine the readiness of the canteen at PTAIN West Sumatra towards a halal certified canteen. Canteen readiness can be seen from the canteen manager's knowledge of PTAIN regarding the JPH Law, the understanding of canteen managers at PTAIN on the halal guarantee system criteria, and the canteen manager's behavior at PTAIN towards Halal Critical Control Points. This type of research is field research using a combination of research (Mixed Method) using the Concurrent Triangulation Strategy model. The results showed that the average canteen manager's knowledge of the JPH Law was good, an understanding of good halal product guarantees, and good HCCP behavior. The level of canteen readiness to halal certified canteen at Imam Bonjol Padang UIN is 68.56%, the canteen at IAIN Batusangkar 73.76%, and the canteen at IAIN Bukittinggi 73.21%. It can be concluded that the readiness of the canteen at PTAIN West Sumatra towards the halal certified canteen is in the good category,and ready to go to the halal certified canteen
Pengaruh Penambahan Prebotik Inulin Umbi Dahlia terhadap Kadar Protein Sinbiotik Set Yoghurt Ackri Yurico; Minda Azhar
Natural Science Vol 8, No 2 (2022)
Publisher : Universitas Islam Negeri Imam Bonjol Padang

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.15548/nsc.v8i2.4429

Abstract

Sinbiotik set yoghurt dengan penambahan prebiotik inulin dari umbi tanaman dahlia merupakan salah satu pangan fungsional yang inovatif. Penelitian ini bertujuan untuk menentukan pengaruh penambahan prebiotik inulin dari umbi dahlia terhadap kadar protein sinbiotik set yoghurt. Penelitian ini menggunakan metode eksperimen dengan memvariasikan konsentrasi inulin (0%, 0.1%, 0.3% dan 0.5%). Waktu inkubasi pembuatan sinbiotik set yoghurt selama 20 jam pada suhu 37°C. Kadar protein ditentukan dengan metode Lowry. Data dianalisa menggunakan ANOVA dan uji lanjut Duncan’s Multiple Range Test (DMRT) dengan software SPSS versi 24. Hasil penelitian menunjukkan bahwa sinbiotik set yoghurt dengan kadar protein tertinggi adalah pada penambahan konsentrasi inulin 0,3%. Hasil analisis kadar protein menunjukkan perbedaan yang signifikan antar variasi konsentrasi inulin. Bedasarkan uji lanjut DMRT, terdapat perbedaan yang signifikan antara variasi konsentrasi 0% dan 0,1% dengan konsentrasi 0,1% 0,3% dan 0,5%.
Pembelajaran Augmentasi Reality untuk Meningkatkan Pemahaman Hakikat Sains Sistematis Literatur Review Elza Ardea Nadela; Niki Dian Permana; Mery Berlian; Rian Vebrianto
Natural Science Vol 8, No 2 (2022)
Publisher : Universitas Islam Negeri Imam Bonjol Padang

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.15548/nsc.v8i2.3978

Abstract

Students' ignorance of science makes it difficult for educators to teach. Augmented Reality can help students and instructors complete the learning system. Truth enhancement is an innovation that incorporates 3D (3D) virtual items in a real 3D climate. The survey results show that in the learning process the students' lack of interest in learning. The lack of student interest in carrying out the learning process is caused by learning activities carried out only by the lecture method and giving questions on a regular basis. This research is intended as a training aid to help students attract more attention and interest in the learning process. AR innovations have been applied in various fields and in various areas of training. In the field of training, the extension of truth is used as a learning climate. The innovation of increased reality can also be utilized to understand scientific ideas by describing the construction of model items and theoretical ideas. The method used is a systematic literature review using PRISMA diagrams and using two digital libraries, namely Google Scholar and Google Scholar. So that the selected literature is relevant, the search uses the keywords "Agmented Reality Learning, Use of Augmented Reality Media in Understanding the Nature of Science". Furthermore, screening to get scientific article publications from 2016-2021 which discusses the development of augmented reality media in understanding the nature of science so that there are 8 articles that are appropriate. From this study, it was found that there is an inquiry learning model, the effectiveness of learning media and applications that use AR technology. From the research, it is hoped that students will experience increased learning from all aspects and all points of view. It can be concluded that the use of expanded reality media can build the advantages of students' interest and understanding in learning. In future research, it is expected to use more journal sources so that they can deepen the research results.
Pengaruh Penggunaan Alat Peraga dalam Pembelajaran IPA SMP Terhadap Hasil Belajar Siswa Ines Coria Vera; Monica Prima Sari
Natural Science Vol 8, No 2 (2022)
Publisher : Universitas Islam Negeri Imam Bonjol Padang

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.15548/nsc.v8i2.3840

Abstract

This study aims to see the effect of using science teaching aids in learning to improve student's learning outcomes. This study uses the ex-post facto method with effect size analysis. The population of this study is all reputable and indexed articles related to the use of teaching aids in Integrated Science learning at the SMP/MTS level. The sample in this study was 11 articles accredited by SINTA and indexed by SCOPUS. The criteria for the articles used are articles that discuss the effect of using teaching aids in Integrated Science learning at the SMP/MTS level, published in 2018-2021. The results of this study indicate that the use of science teaching aids in learning can improve student’s learning outcomes.
Pengaruh Asam Laurat Terhadap Ukuran Nanopartikel Magnetit (Fe3O4) dari Pasir Besi Sijunjung Milla Walfauziah Verina; Syamsi Aini
Natural Science Vol 8, No 2 (2022)
Publisher : Universitas Islam Negeri Imam Bonjol Padang

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.15548/nsc.v8i2.4744

Abstract

Magnetite (Fe3O4) nanoparticles have been successfully synthesized from natural iron sand originating from the rest of the gold panning area of Sijunjung Regency, West Sumatra, Indonesia. The method used in this study is the coprecipitation method with the addition of lauric acid used to obtain a uniform particle size and to control the crystal size. With variations in the mass of lauric acid: 0 g, 1.25 g, 2.5 g, 3.75 g, and 5 grams. And variations in the mass of iron sand used are 8 g, 10 g, 12 g, 14 g, and 16 g. The difference in mass of iron sand produces a solution of FeCl3 and FeCl2 with different percentages of iron oxide solubility. The results of the synthetic powder tested by XRD on samples without the addition of lauric acid were dominated by the hematite phase and in samples with the addition of 1.25 g, 2.5 g, 3.75 g, and 5 grams of lauric acid, a cubic crystal structure with a single-phase magnetite was obtained. With the optimum conditions obtained in the Scherrer-Debay equation, it was obtained by adding 2.5 g of lauric acid with a crystal size of 22.3 nm
Pengembangan Buku Ajar Berbasis Model Pembelajaran ASSURE Untuk Mengajarkan Pemecahan Masalah Anisatur Rohmah; Ria Wulandari
Natural Science Vol 8, No 2 (2022)
Publisher : Universitas Islam Negeri Imam Bonjol Padang

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.15548/nsc.v8i2.3769

Abstract

Textbooks based on the ASSURE learning model can be an alternative learning resource that utilizes technology. This study aims to: 1) describe the validity of developing textbooks based on the ASSURE learning model to teach problem solving, 2) describe the practicality of developing textbooks based on the ASSURE learning model to teach problem solving, and 3) describe the effectiveness of developing textbooks based on the learning model to teach solution to problem. The research uses the ADDIE development model. The research data were obtained from validity sheets, learning implementation observation sheets, student activity observation sheets, solution sheets and constraints in learning, as well as problem solving descriptions. The results of data analysis show that the validity of the textbooks is 88.32 – 95.4% including valid qualifications, the practicality of textbooks is 78 – 100% declared reliable and the effectiveness of textbooks is 69% – 74% including the medium – high category. Thus, the development of textbooks based on the ASSURE learning model to teach problem solving is declared valid, practical and effective so that the product is feasible to use.

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