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Formative Dimensions for Green and Sustainable Chemical Education: A Qualitative Evaluation Tool of the Formative Level of Experimental Processes
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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
Laboratory Class for Isoenzymes Teaching: Simulation of Creatine Kinase Electrophoresis Using Dyes
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Louise Castro de Jesus; Sophia Lincoln Cardoso de Azevedo; Rafaela Moraes Pereira de Sousa; Ana Beatriz Matos; Salim Kanaan; José Carlos Pelielo de Mattos; Lidia Maria Amorim – Journal of Biological Education, 2025
Isoenzymes are variant forms of the same enzyme activity that exhibits different tissue distribution. When cells are damaged, intracellular content leaks into the blood stream, making them potential biochemical markers. Undergraduate health sciences students are expected to interpret laboratory findings of serum levels of biochemical markers and…
Descriptors: Science Laboratories, Biochemistry, Health Sciences, Allied Health Occupations Education
Creating and Experimenting with a Low-Cost, Rugged System to Visually Demonstrate the Vapor Pressure of Liquids as a Function of Temperature
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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
Controlled Synthesis of Nanomaterials at the Undergraduate Laboratory: Cu(OH)[subscript 2] and CuO Nanowires
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da Silva, Anderson G. M.; Rodrigues, Thenner S.; Parussulo, Andre´ L. A.; Candido, Eduardo G.; Geonmonond, Rafael S.; Brito, Hermi F.; Toma, Henrique E.; Camargo, Pedro H. C. – Journal of Chemical Education, 2017
Undergraduate-level laboratory experiments that involve the synthesis of nanomaterials with well-defined/controlled shapes are very attractive under the umbrella of nanotechnology education. Herein we describe a low-cost and facile experiment for the synthesis of Cu(OH)[subscript 2] and CuO nanowires comprising three main parts: (i) synthesis of…
Descriptors: Science Laboratories, Laboratory Experiments, Chemistry, Undergraduate Students
Using a Sequence of Experiments with Turmeric Pigments from Food to Teach Extraction, Distillation, and Thin-Layer Chromatography to Introductory Organic Chemistry Students
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da S. F. Fagundes, Thayssa; Dutra, Karen Danielle B.; Ribeiro, Carlos Magno R.; de A. Epifanio, Rosa^ngela; Valverde, Alessandra L. – Journal of Chemical Education, 2016
This experiment encourages students to use deductive reasoning skills to understand the correlation between different techniques used in a chemistry laboratory and to extract and analyze curcuminoids using natural products and processed food from a grocery store. Turmeric pigments were used to teach continuous or discontinuous extraction, vacuum…
Descriptors: Science Instruction, Science Experiments, Science Laboratories, Laboratory Experiments
Introducing Environmental and Sustainable Chemistry Topics Using a Nanotechnology Approach: Removing Hazardous Metal Ions by Means of Humic-Acid-Modified Superparamagnetic Nanoparticles
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Gomes da Silva, Delmarcio; Menegatti de Melo, Fernando; Silveira, Alceu Totti, Jr.; Constancio da Cruz, Bruno; Prado, Caio Cesar Pestana; Pereira de Vasconcelos, Luana Cristina; Lucas, Vitor Amaral Sanches; Toma, Henrique Eisi – Journal of Chemical Education, 2016
A laboratory experiment has been developed to illustrate environmental and sustainability aspects, focusing on the wastewater treatment by means of superparamagnetic nanoparticles functionalized with humic acid. The experiment, conducted by a group of high school students, involves nanoparticle synthesis and minor characterization, followed by…
Descriptors: Science Instruction, Science Experiments, Laboratory Experiments, Science Laboratories
Have Biofuel, Will Travel: A Colorful Experiment and a Different Approach to Teach the Undergraduate Laboratory
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El Seoud, Omar A.; Loffredo, Carina; Galgano, Paula D.; Sato, Bruno M.; Reichardt, Christian – Journal of Chemical Education, 2011
The substitution of petroleum-based fuels with those from renewable sources has gained momentum worldwide. A UV-vis experiment for the quantitative analysis of biofuels (bioethanol or biodiesel) in (petroleum-based) diesel oil has been developed. Before the experiment, students were given a quiz on biofuels, and then they were asked to suggest a…
Descriptors: Fuels, Science Instruction, Science Experiments, Laboratory Experiments