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Showing 1 to 15 of 128 results Save | Export
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Jorge Sa´iz; Javier Rupe´rez-Pascualena – Journal of Chemical Education, 2023
Here, we present a laboratory activity in which the students work on an analysis of a questioned document that was written with one out of five possible pens. As a forensics study, the activity applied chemistry and analytical chemistry tools to solve the case. The students were able to apply polarity and solubility concepts to select and discard…
Descriptors: Chemistry, Science Instruction, Undergraduate Students, Crime
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Jixin Wang; Wenshui Zhou; Yin Li; Mei Yu; Zheng Zhu – Journal of Chemical Education, 2024
By hosting a college students' laboratory skills contest, we provide an interesting activity for students to cultivate good laboratory practices and thereby improve their laboratory skills. The substance of this contest is the detection of the hardness of water, which involves numerous laboratory skills such as solution preparation, weight by…
Descriptors: Undergraduate Students, Chemistry, Science Instruction, Laboratory Experiments
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Mo´nica I. Garci´a-Aranda; Marco Franco-Pe´rez; Angel Zamudio-Medina – Journal of Chemical Education, 2023
Heterocyclic compounds are an integral part of research, particularly in the pharmaceutical field. The synthesis of such compounds in an undergraduate laboratory can help students understand the relevance and importance of their field of study. Our experimental activity introduces a novel procedure to synthesize coumarin, a heterocyclic formed by…
Descriptors: Undergraduate Students, College Science, Chemistry, Laboratory Experiments
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Siddiqui, Khawar S.; Poljak, Anne; Ertan, Haluk; Bridge, Wallace – Biochemistry and Molecular Biology Education, 2022
Determination of enzyme activity is crucial for discovery, research, and development in life sciences. The activity of enzymes is routinely determined using spectrophotometric assays that measure rates of substrate consumption or product formation. Though colorimetric-based detection systems are simple, rapid, and economical to perform, the…
Descriptors: Biochemistry, Biological Sciences, College Science, Heat
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Faville, Scott C.; Harris-Hamdscomb, Kes; Harker, Owain; Mattison, Stephanie; Tamorite, Hajie; Bristowe, Joshua; Daly, Daniel; Ege, Raissa; He, Haoyuan; Jones, Julian; McCorkindale, Abby; Mei, Kerry; Monson, Ashleigh; Moree, Lana; Perkovic, Finley; Rickerby, Georgia; Robinson, Jack; Rudkin, Felix; Whibley, Luke; Worthington, Rebecca; Ennis, Courtney; de la Harpe, Sara; Brind, Thomasin; Hopkins, Andrew; Winefield, Kaleb; Hendrickx, Sarah; Caljon, Guy; Perry, Benjamin; Vernall, Andrea J. – Journal of Chemical Education, 2022
An undergraduate laboratory was developed as part of the Drugs for Neglected Diseases "initiative's" Open Synthesis Network. This activity aimed to develop new compounds efficacious against visceral leishmaniasis. Students successfully synthesized, purified, and characterized ten different benzoxazole amides that were sent for biological…
Descriptors: College Science, Undergraduate Students, Laboratory Experiments, Diseases
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Erin M. Ball; Robin A. Costello; Cissy J. Ballen; Rita M. Graze; Eric W. Burkholder – CBE - Life Sciences Education, 2024
Racial biases, which harm marginalized and excluded communities, may be combatted by clarifying misconceptions about race during biology lessons. We developed a human genetics laboratory activity that challenges the misconception that race is biological (biological essentialism). We assessed the relationship between this activity and student…
Descriptors: Race, Genetics, Misconceptions, Undergraduate Students
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Keira D. Naff; Jeri L. Tyler; Dima H. Hamza; Jonathan D. White – Journal of Chemical Education, 2023
Structure--activity relationships are foundational concepts in biochemistry and drug design. Despite their importance, it can be difficult to create and execute laboratory activities that allow students to directly observe the interactions between small-molecule drugs and their biomolecular targets. Here, we report an activity that investigates…
Descriptors: Genetics, Undergraduate Students, Undergraduate Study, College Science
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Cybulskis, Viktor J.; Gawecki, Piotr; Zvinevich, Yury; Gounder, Rajamani; Ribeiro, Fabio H. – Journal of Chemical Education, 2021
A versatile and portable apparatus was developed to demonstrate exciting visual displays of catalytic phenomena that introduce basic concepts in catalysis, renewable energy, and chemical safety, in order to pique scientific curiosity in a variety of audiences including middle and high school students, undergraduate and graduate students, and the…
Descriptors: Science Instruction, Chemistry, Scientific Concepts, Concept Formation
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Bracker, Rachel; Dominguez, Kimberly; Stender, Anthony S. – Journal of Chemical Education, 2020
Nanoparticles are an increasingly important tool in chemistry research, but currently there are few opportunities for chemistry students to work with nanoparticles in undergraduate analytical courses. In this exercise, designed for an analytical or instrumental analysis lab course, students have the opportunity to work with solutions of silver…
Descriptors: Chemistry, Undergraduate Students, Science Activities, Science Instruction
Gerard G. Dumancas; Noemi Carreto; Oliver Generalao; Guoyi Ke; Ghalib Bello; Arnold Lubguban; Roberto Malaluan – Journal of Chemical Education, 2023
Chemometric techniques such as partial least-squares (PLS) regression have been applied with huge success to a wide array of chemical problems including multicomponent analysis of analytes in complex mixtures. Despite this, there are few examples of laboratory pedagogical exercises that involve students in the acquisition of chemical data from…
Descriptors: Undergraduate Students, College Science, Chemistry, Science Laboratories
Tyler A. Shaffer; Carlos U. Herrada; Avery M. Walker; Laura D. Casto-Boggess; Lisa A. Holland; Timothy R. Johnson; Megan E. Jones; Yousef S. Elshamy – Journal of Chemical Education, 2023
Electrophoresis is integral to analytical and biochemistry experiences in undergraduate education; however, fundamental principles of the method are often taught in upper-level laboratories through hands-on experiences. A laboratory activity is reported that teaches the concepts of electrophoretic mobility and electroosmotic flow. A single…
Descriptors: Chemistry, Science Instruction, Teaching Methods, Cost Effectiveness
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Xiaoli Liu; Sirui Liu; Yichang Yao; Zimeng Ye; Hang Wang; Zhihao Chai; Yanhua Song; Xingyan Xu; Jiajia Liu; Jianbing Shi; Haizheng Zhong; Lin Ye – Journal of Chemical Education, 2023
Hydrogel is an interesting topic in polymer chemistry, which is closely related to daily life and advanced technology. In this paper, we report an activity to deliver hydrogel chemistry into middle school classrooms by undergraduates as a bridge between professors and students. During the activity, undergraduates act as a bridge to receive…
Descriptors: Secondary School Science, Chemistry, Middle School Students, Science Instruction
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Robinson, Rebekah L.; Neely, Amy E.; Mojadedi, Wais; Threatt, Katie N.; Davis, Nicole Y.; Weiland, Mitch H. – Biochemistry and Molecular Biology Education, 2017
The concepts of protein purification are often taught in undergraduate biology and biochemistry lectures and reinforced during laboratory exercises; however, very few reported activities allow students to directly gain experience using modern protein purification instruments, such as Fast Protein Liquid Chromatography (FPLC). This laboratory…
Descriptors: College Science, Active Learning, Chemistry, Science Laboratories
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Halepas, Steven; Hamchand, Randy; Lindeyer, Samuel E. D.; Bru¨ckner, Christian – Journal of Chemical Education, 2017
A laboratory experiment is described that extracts the tetrapyrrolic teal-colored biliverdin IXa, as its dimethyl ester, from commercially available emu eggshells. The extraction of ~10 mg samples of biliverdin is simple and requires two 3 h lab periods: A two-step acid digestion and liquid-liquid extraction, followed by short silica gel flash…
Descriptors: Animals, Science Instruction, Laboratory Experiments, Chemistry
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Limpanuparb, Taweetham; Areekul, Cherprang; Montriwat, Punchalee; Rajchakit, Urawadee – Journal of Chemical Education, 2017
The blue bottle experiment is a popular chemical demonstration because of its simplicity and visual appeal. Most papers on the topic focus on a new formulation or a new presentation, but only a few discuss pedagogical application for a full lab session. This article describes the use of this experiment in the first session of undergraduate…
Descriptors: Science Experiments, Chemistry, Undergraduate Students, Science Instruction
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