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Juliana Mesquita Contarini; Amanda de Sousa Martinez de Freitas; Thiago Aguiar Cacuro; Lai´s Jubini Callegario; Fernando Jose´ Luna Oliveira; Walter Ruggeri Waldman – Journal of Chemical Education, 2023
Potash, an essential raw material of the 18th century, used to be produced from the ashes of plants. Known since antiquity, it was in 1807 that Humphry Davy put an end to the decades-long controversy about its nature as a compound. The technology behind potash production was implemented in Brazil by the Portuguese naturalist Frei Velloso. The…
Descriptors: Foreign Countries, Science Instruction, Chemistry, Science History
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Toma, Henrique Eisi – Journal of Chemical Education, 2021
Educational kits can improve the teaching of experimental sciences, providing an interesting strategy to be explored at home, especially during the COVID-19 pandemic. In this sense, chemistry kits based on a microscale design were developed encompassing safety, portability, efficacy, and low cost. They were successfully applied in regular classes…
Descriptors: Science Education, Science Instruction, Chemistry, COVID-19
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Queiroz, Salete Linhares; de Lima, Mikeas Silva; Lima dos Santos, Douglas Gomes – Journal of College Science Teaching, 2023
There has been an increase in the number of studies about educational scenarios aimed at promoting argumentation. Special attention is given to scenarios involving case studies. In this article, we report on the application of an interrupted case study to develop argumentation skills supported by information and communication technologies. The…
Descriptors: Science Instruction, Chemistry, Persuasive Discourse, Undergraduate Students
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Rosivania S. Andrade; Va^nia Gomes Zuin – Journal of Chemical Education, 2023
This paper addresses the fundamentals, structuring, and application of a Formative Dimensions for Green and Sustainable Chemical Education (Formative Dimensions -- GSCE) qualitative evaluation tool of experimental processes. This instrument was created considering the need to resignify laboratory practices in Chemical Education. Qualitative…
Descriptors: Chemistry, Sustainability, Evaluation Methods, Science Experiments
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Bruna M. Damm; Izabela de F. Schaffel; Gabriel F. S. dos Santos; Lilia E. S. Azevedo; Rafael de Q. Ferreira; Paulo R. G. de Moura – Journal of Chemical Education, 2023
Antioxidants are molecules that act against free radicals, and this effect can bring many benefits to health and society. Antioxidants can be found in various matrices of nature, such as fruits and plants. Some studies have shown that "Rhizophora mangle," a typical mangrove plant, is rich in antioxidants. People report its use for…
Descriptors: Chemistry, Science Instruction, Scientific Concepts, Plants (Botany)
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Mikeas Silva de Lima; Lilian Pozzer; Salete Linhares Queiroz – Journal of Chemical Education, 2023
The mining industry in Brazil, despite contributing to economic growth, is one of the human activities that negatively impacts the environment. This situation can be contextualized in discussions of several curricular chemistry topics. One way in which science, technology, society, and environmental issues can be discussed in classes is through…
Descriptors: Case Studies, Science Instruction, Mining, Natural Resources
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Cavalcante dos Santos, Rafael; Cavalcanti, Juliane Natalizi Cabral; Werneck do Carmo, Elisa Carneiro; de Souza, Fernando Costa; Soares, Wesley Garcia; de Souza, Cristiane Gimenes; de Andrade, Débora França; d'Avila, Luiz Antonio – Journal of Chemical Education, 2020
An experimental procedure is presented that was developed by fifth-year chemical engineering and industrial chemistry undergraduates at the Federal University of Rio de Janeiro doing the discipline on Experimental Organic Technology. The aim of this study was to apply the solvatochromic effect of the dye Nile Blue chloride to the characterization…
Descriptors: Science Instruction, College Science, Undergraduate Study, Chemistry
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da Silva Costa, Mauricio Bruno; dos Santos, Bruno Ferreira – Chemistry Education Research and Practice, 2022
The learning of scientific concepts is one of the main research subjects in science education. Although little used, the theory of conceptual profiles allows the study of this knowledge, taking into account the presence of different ways of thinking about a certain concept in the same individual. This study aimed to build a conceptual profile for…
Descriptors: Science Instruction, Scientific Concepts, Chemistry, Concept Formation
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Silva, Alceu Junior Paz da; Arroio, Agnaldo – Journal of Turkish Science Education, 2022
This exploratory study investigated the relationships between time utilisation and the use of visual resources, supported by audiovisual records of the practices of pre-service chemistry teachers applying Teaching-Learning Sequences. The content analysis was based on analytical categories found in the scientific literature. The results showed a…
Descriptors: Visual Aids, Preservice Teacher Education, Science Teachers, Chemistry
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Jose´ Nunes da Silva Ju´nior; Maria Elenir Nobre Pinho Ribeiro; Antonio Jose´ Melo Leite Junior; Maria Clara de Oliveira Alexandre; Francisco Serra Oliveira Alexandre; Andre´ Jalles Monteiro – Journal of Chemical Education, 2024
This work provides information about the design, implementation, and assessment of the instructional role of a bilingual (English and Portuguese) web-based board game designed to assist Brazilian Mechanical Engineering undergraduate students in reviewing the content related to thermodynamics, chemical equilibrium, and chemical kinetics. The game…
Descriptors: Educational Games, Web Sites, Chemistry, Science Education
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Silva, Janai´na P.; Nunes, Karen M.; Silva, Wladmir T.; Moreira, Thales do V.; Silveira, Igor H. V.; Sebastiao, Rita C. O. – Journal of Chemical Education, 2021
1000 Future Scientists (1000FSc) is a university extension project developed at the Department of Chemistry in Federal University of Minas Gerais (UFMG). Conducted by the Higher Education Administrative Technicians and Professors, it presents the university to the community by proposing an engaging experience for elementary and high school…
Descriptors: Elementary School Students, High School Students, Science Education, Science Projects
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dos Santos Barbosa da Silva, Matheus; Kasseboehmer, Ana Cláudia – Cultural Studies of Science Education, 2023
In this paper, we present our study into how teaching practices in chemistry are socially stratified under the center-suburban divide in a medium-sized city, located in the State of São Paulo, Brazil. The paper mainly draws upon the Bourdieusian-inspired concepts of institutional habitus and symbolic capital to examine how institutional discourses…
Descriptors: Foreign Countries, Chemistry, Science Instruction, Science Teachers
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Tasso E. F. Diógenes; Gabriela A. de B. Vieira; Joao R. A. Leao; Glaydson F. B. de Oliveira – Journal of Education and Learning, 2024
The professional high school by the federal schools in Brazil requires an integrated curriculum itinerary. There is a lack of information about how to achieve that in a practical conception of integration. This article aimed to investigate the interdisciplinary approach of the content "transformation of energy" involving the relationship…
Descriptors: Interdisciplinary Approach, High School Students, Intervention, Teaching Methods
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Gomes, Victor V.; Cavaco, Sofia C. F.; Morgado, Carmen P.; Aires-de-Sousa, João; Fernandes, Julio C. B. – Journal of Chemical Education, 2020
This work describes a simple talking calorimeter for the visually impaired based on the Arduino Uno without any shield. An electronic interface was designed using a Wheatstone bridge, a thermistor, or an operational amplifier (opamp). The temperature values are communicated by a loudspeaker connected to pulse-width modulation (PWM) digital output…
Descriptors: Visual Impairments, Science Instruction, Chemistry, Thermodynamics
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Papai, Rodrigo; Romano, Majara Araujo; Arroyo, Aline Rodrigues; Rodrigues da Silva, Bárbara; Tresoldi, Bruno; Winter, Gabriela Cabo; Costa, Julia Messias; Freitas Santos, Maria Aparecida; Prata, Matheus Damasceno; Gaubeur, Ivanise – Journal of Chemical Education, 2019
A creative apparatus for use in a hands-on laboratory experiment that allows the visualization of the vapor pressure as a function of temperature is described in this paper. Inspired by homemade barometers and using simple materials that are easily accessible for teaching laboratories, a lowcost system for the establishment of the vapor-pressure…
Descriptors: Physics, Chemistry, Laboratory Experiments, Science Experiments
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