Faculty Of Natural Sciences Research Articles

KOMPONEN SENYAWA BIOAKTIF EKSTRAK BINTANG LAUT Protoreaster nodosus Dan Linckia laevigata DENGAN METODE MASERASI

Background : One type of species from the class Asteroidea phylum Echinodermata, namely sea stars. Approximately 6000 species from the Phylum Echinodermata and all live in the sea. The use of starfish by the community is still very limited, where it is only used as a food source, even though starfish can also be used as a source of bioactive compounds that are more economically valuable so that they can be used for development in the food and health sectors. This study aims to determine the content of bioactive compounds from the extracts of sea stars Protoreaster nodosus and Linckia laevigata. Methods: Samples were obtained from Waisarisa waters on Seram Island, analysis was carried out at the Biochemistry Laboratory, Department of Chemistry, Faculty of Mathematics and Natural Sciences, University of Pattimura. The parameters tested in this study were phytochemical tests which included flavanoid tests, saponin tests, steroid tests, tannin tests and phenolic tests. The extraction technique was carried out by maceration with ethanol solvent. Results: The results of the phytochemical test of the starfish extract Protoreaster nodosus which had positive results in the phytochemical test were tannins, phenolics and saponins. While the test results on the Linckia laevigata starfish extract which had positive results found bioactive flavonoids and saponins. Conclusion: The results of the phytochemical screening test of Protoreaster nodosus star extract have 3 bioactive components namely flavonoids, tannins, phenolics and saponins.

Discovery-learning-based Module Development Enriched with Sambas Folklore on the Sub Material Classification of Living Things

This study aims to develop a module as teaching materials on the Sub Material Living Things Classification of living things sub-material with a discovery learning approach combined with folklore and determine students' responses to these teaching materials. This study uses the first three stages of the Thiagarajan 4D model development method: define, design, develop, and disseminate. The research instruments used were validation sheets and questionnaires. The sample in this study was class X high school students consisting of 15 people. The five product validators consisted of two lecturers from the Biology Study Program, Faculty of Mathematics and Natural Sciences, Tanjungpura University, three biology teachers from 2 high schools in Pontianak City, and one from Sambas Regency. The module validation sheet consists of 4 aspects, namely content, language, presentation, and graphics consisting of 20 indicators. The student response questionnaire consists of three aspects, namely cognitive, affective, and conative aspects, comprising 26 statements. The response questionnaire validators consisted of 2 lecturers from the Biology Education Study Program, FKIP, University of Tanjungpura. Developing a module based on discovery learning sub-material classification of living things is declared feasible because it obtains a validity value of CVR = 1, meaning that the module is valid in content. Modules declared feasible are tested on a limited basis and obtain an average result of 81.9% in the very strong category. Further research is needed to test modules in larger classes.

Effectiveness of ginger extract (Zingiber officinale Rosc.) on catfish (Clarias gariepinus) infected by Aeromonas hydrophila

Research on the effectiveness of ginger extract (Zingiber officinale Rosc.) against catfish (Clarias gariepinus) infected with Aeromonas hydrophila bacteria aims to analyze the antibacterial effectiveness of ginger extract against catfish injected with A. hydrophilla bacteria and to analyze the optimum dose of ginger extract as an immunostimulant in control of A. hydrophila infection. This research was carried out on January 26, 2021 to February 26, 2021 for 30 days and took place at the Microbiology Laboratory of the Faculty of Agriculture, the Laboratory of the Faculty of Mathematics and Natural Sciences and the Wet Laboratory of the Aquaculture Study Program, Faculty of Agriculture, University of Mataram. The method used in this study is an experimental method with a completely randomized design (CRD). The treatments were P1 (control), P2 (extract dose 30 ppm), P3 (extract dose 60 ppm) and P4 (extract dose 90 ppm). The ginger extract dose of 90 ppm (P4) was the optimum dose in the results of this study because it could give the best results on all the parameters measured. Keywords : Aeromonas hydrophila, , ginger extract. catfish

Application of vermicompost from spent coffee ground on the growth of Capsicum frutescens L.

This research aims to know the effect of vermicompost from the spent coffee ground on the growth of vegetative Capsicum frutescens L. The research was conducted in the experimental field of the Faculty of Mathematics and Natural Science, Universitas Negeri Jakarta, from May until August 2022. This study was conducted using a completely randomized design (RAL) nonfactorial with four treatments and three replications to obtain 12 units of trial. Each experimental unit consisted of 3 seeds, so there are 36 seedlings. The parameters measured were seedling height, number of leaves, stem diameter, leaf area, and the ratio of the canopy and root dry weight. Data analysis used SPSS 24 with ANOVA method on 95% level. The results showed that the dosing vermicompost fertilizer could improve seedling height, some leaves, stem diameter, leaf area, dry weight and ratio of cacao seedling room from spent coffee grouts header. A vermicompost fertilizer dose of 25 g/5 kg produced the highest growth in Capsicum frutescens L. breeding.

Evaluasi Performa Sistem Informasi FMIPA Universitas Lampung Menggunakan Information Systems Functional Scorecard (ISFS)

The information system at FMIPA Unila (Faculty of Mathematics and Natural Sciences, University of Lampung) is intended to support both academic and non-academic activities within the FMIPA Unila community. However, the system frequently faces disruptions, ranging from server shutdowns to unauthorized access by malicious individuals. Furthermore, some of the information service menus and features are currently inaccessible within the FMIPA Unila information system. The main aim of this study is to evaluate the operational efficiency of the FMIPA Unila information system from the user's point of view. The research employs the Information Systems Functional Scorecard (ISFS) method, which comprises three assessment dimensions: system performance, information effectiveness, and service performance. To gauge system performance, questionnaires were distributed to 100 student participants who represent various departments at FMIPA Unila. According to the ISFS calculations, the overall performance of the Unila FMIPA information system can be generally deemed satisfactory. Recommendations for improving and fine-tuning the FMIPA UNILA information system include the provision and completion of information services currently missing from the Profile menu, Academic menu, Research and Service menu, Student Affairs menu, and Document menu. Furthermore, enhancements should be made to the system's menu navigation features and menu buttons to ensure their proper functionality.

Prevensi Gerakan Tanah Jenis Longsor Lereng di Dusun Riang Negeri Tawiri Kecamatan Teluk Ambon, Kota Ambon

Disaster prevention is carried out to prevent and minimize the occurrence of natural disasters such as landslides. Prevention is at the heart of natural disasters and must be supported by community knowledge about disaster management in the form of pre-disaster, during-disaster, and post-disaster views from a scientific and technical perspective. Inadequate knowledge will have an impact on less-than-optimal responses in disaster prevention and mitigation. One of the efforts to increase the community's role in preventing natural disasters is through Community Service (PKM) activities using the geo-forestry method by planting shade trees at the location of former landslides and the potential for landslides in RT.02/RW.07 Riang, Tawiri Village, Teluk Ambon District. This activity is carried out through the transfer of knowledge about, Land Movement Physics, Environmental Geophysics, and Disaster Mitigation. Service activities are expected to reach the Disaster Volunteer Team in Riang, Tawiri Village, namely by increasing the network of cooperation with Disaster Volunteers and establishing synergies with Geoscience Volunteers and the Unpatti Faculty of Mathematics and Natural Sciences.

Ekstrapolasi Keterampilan Ilmiah Melalui Penerapan Pembelajaran Projek Berbasis Presentasi Pada Calon Guru Pendidikan Ilmu Pengetahuan Alam Di Masa Pandemic Covid-19

The purpose of this research is to explore the scientific attitudes and scientific skills of Natural Sciences teacher candidates by implementing presentation-based project learning. The number of research samples was 98 prospective teachers for the 2022/2023 academic year in the Science Education Study Program at the Faculty of Mathematics and Natural Sciences, Makassar State University. The research method applied is quasi-pre-experimental method. The results of the descriptive statistical analysis found that: 1) 100 percent of science teacher candidates were active in participating in presentation-based project learning during the Covid-19 pandemic; 2) the responses of prospective science teachers to the implementation of project-based learning were very positive, 3) the average score of scientific attitudes was 49.49 which was included in the high category, 4) the average score of scientific skills was 91.54 which was included in the high category. The conclusion of presentation-based project learning can develop the scientific attitude of science teacher candidates. Recommendations: 1) presentation-based project learning can be applied in developing scientific attitudes and scientific skills, 2) presentation-based project learning can activate practicum activities during (online) during the Covid-19 pandemic.

Impact of the Combination of Natural Sciences and the Humanities on the Quality of Modern Education

The paper relates to the relevance of the implementation of the integrated approach to building the higher education system. The research aimed to investigate the features of the combination of natural sciences and the humanities and consequences on the quality of higher education. One-hundred and twenty-four (124) students in their first and second years of study (bachelor’s degree) from a Faculty of Natural Sciences and Geography, 29 teachers, and 15 independent experts took part in the experiment. The study was designed as a semi-experimental study that included both quantitative and qualitative methods. This included the method of self-reflective notes and expert evaluations, online questionnaires (Google Forms, Likert scale), and statistical data processing. Descriptive, content, and qualitative analysis was used for data interpretation. In general, the parties involved evaluated the concept, course, and results of the experiment positively. According to the evaluation results, the students (the focus group) evaluated the prospects of the integrated model positively. The teachers were the most optimistic in their predictions about the potential of integrated teaching to influence the quality of education, and the experts gave a medium score. The main difficulties were related to the establishment of appropriate conditions for cooperation in the context of distance learning and the need to work more intensively than under the traditional autonomous teaching of disciplines. Therefore, the combination of natural sciences and the humanities positively affects the quality of modern higher education during high-quality implementation of the innovative educational model. The study contributes to the present discussions about approaches of reforming and developing the HEI educational paradigm.

Addition of Rice Bran, Soy Protein, Yeast, and Its Combinations to the Styrofoam Degradation by Hongkong Caterpillar (Tenebrio molitor L)

The use of plastic as food packaging dominates polystyrene plastic, namely Styrofoam, because of its light characteristics and the fact that it can be carried without realizing it, releasing large amounts of waste into the environment. Overcoming Styrofoam plastic can be made by using insects from the Coleoptera order, namely Tenebrio molitor L., better known to the common people as the Hongkong Caterpillar. This insect has been extensively explored as a plastic degradation agent. An important component in increasing the rate of styrofoam degradation by Tenebrio molitor L. by providing nutrients in the form of feed such as rice bran, yeast and soy protein. This study aims to determine which feed has the best effect based on styrofoam degradation, biodegradation rate, and survival rate on the performance of Tenebrio molitor L. in degrading styrofoam plastic. This research was conducted from 28 December 2022 to 26 February 2023 at the Biosystematics Laboratory, Department of Biology, Faculty of Mathematics and Natural Sciences, Sriwijaya University, Indralaya. The research is begun used by cultivating and caring stage of Tenebrio molitor L caterpillar. Beetle to obtain the Tenebrio molitor L caterpillar. The next stage is the preparation of EPS styrofoam material and feed in the form of rice bran, yeast and soy protein used for research experiments. The results of this study showed that the combination of rice bran and yeast increased the performance of Tenebrio molitor L. in styrofoam plastic degradation based on the biodegradation rate and 100% survival rate. The conclusion of this study is that rice bran and yeast can improve the performance of Tenebrio molitor L. in degrading styrofoam plastic L.

Pengaruh Ekstrak Daun Kelor yang Diekstraksi dengan Beberapa Jenis Pelarut sebagai Biostimulan terhadap Pertumbuhan Bayam Merah

Using biostimulants in plant cultivation can increase plant growth and make plants more stress-resistant. Plant extracts are one source of natural biostimulants such as Moringa (Moringa oleifera L.), which contain secondary metabolites and plant growth hormones. In the process of plant extraction, the type of solvent used affects the quality of the resulting extract. This study aimed to determine the effect of biostimulants of Moringa leaf extract extracted with several types of solvents on the growth of red spinach (Amaranthus tricolor L.) This research was conducted from March to April 2022 in the Greenhouse and Plant Physiology Laboratory, Department of Biology, Faculty of Mathematics and Natural Sciences, Universitas Andalas, Padang. This study used a Completely Randomized Design (CRD) with four treatments and eight replicates. As treatment is a solvent for extracting moringa leaves consisting of without extract (A), Distilled water (B), Methanol (C), and Ethanol (D). The results showed that the solvent used to extract moringa leaves gave a significantly different effect on the number of leaves but had no significant effect on plant height, leaf area, root length, wet weight, dry weight, chlorophyll content, and anthocyanin content of red spinach plants. Extraction of moringa leaves with methanol and ethanol increases the number of red spinach leaves, which is 14.1 strands.

EFFECTS OF SOCIAL MEDIA ON PSYCHOLOGICAL WELLBEING AND ACADEMIC PERFORMANCE AMONG UNIVERSITY STUDENTS IN SINDH

Social media usage has been a defining characteristic of the digital age, and its effects have been felt among university students, particularly regarding their academic performance and psychological well-being. This study examines the role of social media in these areas. A sample of 600 full-time undergraduate students from the Faculty of Social and Natural Sciences, from Universities of Sindh, participated in the survey. It is a fact that Social media had favorable and unfavorable impacts on students' mental health and academic performance. According to this study, social media addiction has a moderate but statistically significant relationship with grade point average (GPA). The correlation between social media addiction, psychological well-being, and academic performance was negative. Further, males showed higher levels of social media addiction than females. According to these findings, social media addiction negatively impacts students' academic performance and psychological wellbeing. It is concluded that Students need to use social media responsibly by participating in awareness sessions to learn about its positive and negative effects and following guidelines set by their institution. To ensure academic success, universities should allow only necessary academic applications in labs and discourage the compulsive use of social media.

Effectivity of Inhibition of Oil Palm Empty Fruit Bunches Liquid Smoke Against Ganoderma boninense Fungus In Vitro

Oil palm empty fruit bunches (OPEFB) can be processed into liquid smoke through pyrolysis. This study aimed to obtain the best concentration of unpurified liquid smoke from OPEFB in inhibiting the growth of the fungus of Ganoderma boninense. OPEFB samples were obtained from PT. Citra Putra Kebun Asri and G. boninense were collected from Muara Teweh Plantation. The study was conducted in 2 stages; Analysis of liquid smoke from pyrolysis using the GC-MS method at the Organic Chemistry Laboratory, Faculty of Mathematics and Natural Sciences, Gadjah Mada University; and testing the inhibition of liquid smoke on G. boninense in vitro at the Basic Plantation Cultivation Laboratory, Hasnur Polytechnic, and the Microbiology Laboratory of Plantation Products Processing Technology, Muara Teweh Polytechnic. This study was conducted in a completely randomized design with four treatments and six replications. The treatment was the difference in concentration of liquid smoke (1 ml/AC1, 2 ml/AC2, 3 ml/AC3, and control/AC0) in the planting medium, potato dextrose agar (PDA). The results showed that the average yield of unpurified liquid smoke from OPEFB was 34.5%, containing 49.28% acetic acid, 11.57% methyl alcohol, and 9.10% phenol. Application ? 2 ml liquid smoke in PDA completely inhibited G.boninense's growth in vitro, starting three days after application.

The use of Design Thinking Method in applied research to integrate the library in distance learning platforms with a learning object

This work aimed to integrate the most in-demand library services and resources in distance education platforms through the creation of a learning object for the Natural Sciences Faculty, at the University of Puerto Rico, Río Piedras Campus. For this object, the Design Thinking Method was applied, which consists of the following steps: empathizing, defining, ideating, prototyping, and testing. The research approach was mixed. Some information was gathered from participatory observation and netnography, as qualitative methodologies, to identify the needs of the academic community. In addition, the visits statistics to the Centro de Información y Tecnología web pages were considered from the quantitative perspective to contrast them with the findings of the qualitative part. The study found that the resources and services with the greatest demand were journals, databases, remote access, and interlibrary loan. Identifying needs early on helps design solutions that satisfy the user. When applying the Design Thinking Method and, in its first step, empathy considered the library services needs from the beginning. This helped the rest of the steps of the method to be responsive to the needs and to make an informed decision. The product, a learning object, responded to the needs of the Natural Sciences Community, but can be reusable by other organizations by making the necessary adjustments as needed.

Improving Student Knowledge and Understanding of the Greenhouse Gases Effects and Global Climate Change and Their Adaptation and Mitigation Efforts

The increase in the greenhouse gas effect has increased the earth's temperature and triggered global climate change, as well as given various negative impacts. Thus, efforts to adaptation and mitigate the impacts of climate change need to be carried out massively through various positive activities, including outreach and education to increase the knowledge and understanding of various parties related to this matter. Socialization and educational activities were carried out on December 5, 2021 with the theme 'Blue Carbon and Mitigation Climate Change Action' which was organized by the Biology Study Program Student Association, Faculty of Mathematics and Natural Sciences, University of Islam Malang, and was attended by 40 participants from students and alumni which took place online using zoom meeting app. Data collection using a questionnaire as a form of evaluation was divided into two stages, including: 1) pre-test questionnaire before presentation of discussion, and 2) Post-test questionnaire after delivery of presentation and discussion. The results of the socialization found that relatively many participants had minimal knowledge and understanding of the greenhouse gases effects, climate change and their impact on life, including mitigation efforts, but the evaluation results showed positive changes in this regard. With increased knowledge and understanding it is hoped that it will influence their behavior to be actively involved in mitigating the impact of global climate change now and in the future. So that activities like this need to be continuously followed up in academic and non-academic activities in college, as a form of environmental education implementation.

Detection of Streptococcus Mutans in Saliva Using PCR Technique

The purpose of this paper was to detect Streptococcus mutans in saliva in a group of students of the Faculty of Natural Sciences through the PCR technique. The oral cavity is a dynamic environment that undergoes large and rapid fluctuations in pH, nutrient source and availability, oxygen tension, temperature, and osmolality. The ability of Streptococcus mutans to survive in such an environment is attributed to its ability to produce acids as well as glucans from carbohydrates, implicating it in the etiology and progression of dental caries. Detection of Streptococcus mutans using rapid, sensitive and specific methods is very important for early diagnosis and effective assessment of an individual's risk for dental caries. In this study, 30 students, aged 18-20, participated voluntarily, where the average age is 19.07 years, with a standard deviation of 0.57. From analyzing the saliva samples, we found that 86.7% (26/30), SE =0.033, 95%CI (83.7%-89.7%), of them were positive for S. mutans. From the analysis of the χ2 test to see the relationship between the variables taken in the study and the presence of S. mutans, we did not find reliable relationships. PCR, as a molecular biology method, proved to be quite efficient, sensitive and rapid for the detection of Streptococcus mutans from saliva.

Pengembangan Video Pembelajaran Kubus dan Balok dengan Model Project Based Learning (PjBL) Berbantuan Geogebra

Harry Trisakti Kunrade. 18504084. development of cube and Block studying movies with Geogebra Assisted project based learning (PjBL) models in class VIII SMP Negeri Satap Molobog. Mathematics Departement. Faculty of Mathematics, Natural and Earth Sciences. Manado Dtate University. Tondano. 2023. This studies is motivated through problems determined in learning mathematics that are observed from various factors, one in every of which is the dearth of use of media. The purpose of this observe changed into to supply mastering video media products on cube and block cloth with a geogebra-assisted task primarily based mastering (PjBL) model in magnificence VIII SMP Negeri Satap Molobog which is valid, practical and effective. The ADDIE development methodology (Analysis, Design, Development, Implementation, and Evaluation) is used in this form of study, which is referred to as research and development (R&D). 16 kids from SMP Satap Negeri Molobog's eighth grade served as the study's participants. Interviews, questionnaires, learning assessment worksheets in the form of learning implementation plans (RPP), student worksheets (LKPD), and outcomes evaluation questions were all included in the study tools and documentation, data analysis to create learning media products, and knowledge of the valid, prtical, and effective of the generated goods. the share of validity of the consequences of the media professional's evaluation became 92.374% and the share of the result of the material professional's evaluation turned into 94.78% with a completely valid category. For the praticality percent of the media visible from the teacher's response of 96.36% and for student responses 94.625% within the very good category. This evolved learning media meets the effective standards based on the proportion of classical getting to know completeness of 81.25%> 75% of students who are declared to have finished getting to know the use of the learning media used. In end, the academic video media developed is valid, practical, and effective for use in learning.
 Keywords: Studying Movies, Project Based Learning, Geogebra, Cube and Blocks.

STATUS C-ORGANIK DAN KADAR N-TOTAL PADA LAHAN PENGEMBANGAN KELAPA SAWIT DI WAWOLAHUMBUTI KECAMATAN PONDIDAHA KABUPATEN KONAWE

study aims to determine the status of soil organic carbon (C-organic), total nitrogen (N-total), and soil pH in oil palm development areas in Wawolahumbuti Village, Pondidaha Sub-District, Konawe Regency. The research was conducted in Wawolahumbuti Village, covering a research area of 365 hectares. Soil testing was carried out at the Biology Laboratory of the Faculty of Mathematics and Natural Sciences, Halu Oleo University, from January to March 2022. The research was conducted using a survey method. The study location consisted of 6 land units. Soil samples were collected using a composite method. Soil samples were taken at approximately ±25 meters intervals in each cardinal direction, then mixed and homogenized at a depth of 0-100 cm, and approximately 1 kg of composite soil was collected. The variables measured were soil organic carbon (measured using the Walkley & Black method), total nitrogen (measured using the Kjeldahl method), and pH (measured using a pH meter). The research results showed that the status of soil organic carbon in the oil palm development areas in Wawolahumbuti Village, Pondidaha-Konawe ranged from very low (0.87%) to low (1.57%). The status of total nitrogen ranged from low (0.11%) to moderate (0.24%), and the soil pH ranged from very acidic (4.42) to acidic (5.12). Management efforts that can be undertaken to enhance the productivity of oil palm plants in Wawolahumbuti Village include the application of organic materials.

Inovasi Pembuatan Sabun Mandi Cair Dari Virgin Coconut Oil di Desa Tetangga UNSRI

Community service has been conducted regarding counseling on making liquid soap from Virgin coconut oil. The service was carried out in front of mothers and young women in Semambu Island village. In the community service activities, demonstrations and practices are carried out on how to make liquid soap that smells good and can be used as bath soap from Virgin Coconut Oil. The community is very enthusiastic to learn how to make this soap because coconut raw materials are widely available in Semambu, Ogan Ilir Utara District, Jalan Raya Palembang-Prabumulih. Counseling and training on liquid soap are carried out face-to-face in the field. This activity was attended by 50 female recitation members as well as young women from the village. The activity was also attended by 7 Sriwijaya University students. The method of community service activities carried out is the delivery of scientific material and empirical facts from Island village. From the results of the activity, the participants tried to make their own soap using the raw materials provided by the community service team from the UNSRI Faculty of Mathematics and Natural Sciences.

Conditions Of Phytoplankton Community Structure In Lake Toba Ajibata, Toba Samosir Regency

The research was conducted with the aim of knowing the condition of the phytoplankton community structure based on diversity index criteria in the waters of Lake Toba, Ajibata District, Toba Samosir Regency. This research was conducted in February -March 2021. This type of research was ex post de facto, carried out at 5 observation stations with 3 repetitions. Phytozooplankton samples were taken using Net plankton No. 25. Identification of phytoplankton was carried out in the Biology Laboratory of the Faculty of Mathematics and Natural Sciences, Medan State University. Phytoplankton found in 12 genera, namely: Achnantes, Aulacoisera, Encyonema, Claphora, Stigeoclonium, Dictyosphaerium, Staurastrum, Monoraphidium, Oscillatoria, Microcytis, Nostoc, and Chroococcus. The diversity index at Station I was 1.35, II was 1.36, III was 1.31, IV was 1.36, and V was 1.72. The condition of the phytoplankton community structure is stable in the moderate category. The temperature of the waters ranges from 22°C-25°C, the light transparency to the waters ranges from 4-4.5 m, the pH of the waters ranges from 7.36-8.85, the DO of the waters ranges from 6.84-8.25 mg/l, the BOD of the waters ranged from 1.01 to 3.42 mg/l. Lake Toba water quality based on physical and chemical parameters is within the normal range.

Development of the uno chemical card game as a learning medium on the periodic system of elements for high school students

This study aims to develop a chemical uno card game as a learning medium on the periodic system of elements for tenth-grade students and determine its validity and practicality. This type of research is research and development with the Plomp development model, which consists of three stages, namely (1) preliminary research, (2) prototyping stage, and (3) assessment phase. The research subjects were five chemistry lecturers at the Faculty of Mathematics and Natural Sciences, Padang State University, two chemistry teachers, and ten senior high school SMAN 13 Padang students for the 2022/2023 academic year. The research instrument was in the form of one-to-one evaluation interview sheets, media expert validity questionnaires, material expert validity questionnaires, and practicality test questionnaires. Validity data were analyzed using the Aiken'V formula, and practicality data were processed using the percentage formula. The validity value of the media expert was 0.88, and the material expert was 0.85 with the valid category. The results of the practicality analysis by teachers and students are in the very practical category, with respective values ​​of 95.38% and 97%. In conclusion, the uno chemical card game as a learning medium in the periodic system of elements was valid and practical.