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Önen Öztürk, Fatma; Aglarci Özdemir, Oya – Online Submission, 2022
Chemistry includes observable phenomena and materials related to daily life, but learners sometimes have difficulties understanding the theoretical and abstract nature of chemistry as well as its applications and relating it to everyday experiences. In this manner, the aim of the study is to determine and assess whether pre-service science and…
Descriptors: College Freshmen, Preservice Teachers, Science Instruction, Chemistry
Armaghan Shafaei; Hayley Abbiss; Sophie Coutts; Mark Bannister; Janine Bruemmer; Mary C. Boyce – Journal of Chemical Education, 2022
A student experiment that uses QuEChERS (quick, easy, cheap, effective, rugged, and safe) methodology for extraction and HPLC for quantitative determination of tocopherols from seeds and nuts is described here. Chromatographic separation is achieved by using a pentafluorophenyl stationary phase which gives enhanced separation of the tocopherols…
Descriptors: Science Instruction, Science Laboratories, Chemistry, Laboratory Procedures
A Practical Oxidation Experiment for Undergraduate Students: Bobbitt's Salt as a "Green" Alternative
Kyle M. Lambert; Christopher B. Kelly; John A. Milligan; Leon J. Tilley; Robert P. Reynolds; Kellen P. McGuire; Luigi Anzalone; Kimberly E. Del Sesto; Sinead Walsh – Journal of Chemical Education, 2022
Oxidation reactions are critical components of the synthetic toolbox taught to undergraduate students during introductory organic chemistry courses. However, the oxidation reactions discussed in the undergraduate curriculum are often outdated as many organic chemistry textbooks emphasize chromium-based oxidants that are no longer in regular use by…
Descriptors: Undergraduate Students, Scientific Concepts, Science Experiments, Organic Chemistry
Kyle Weaver; Jennifer A. Reeves; Dominik Konkolewicz – Journal of Chemical Education, 2022
Organic chemistry students often struggle with reaction mechanisms, particularly in how they are proposed and justified. In this activity targeting second year organic undergraduates, students used infrared spectroscopy (IR) to track the reaction progress of two distinct aldol reactions and used polarimetry to analyze the stereoselectivity of…
Descriptors: Organic Chemistry, Scientific Concepts, Concept Formation, Undergraduate Students
Michael J. James; George E. Clarke; Charlotte Lee; Ian J. S. Fairlamb – Journal of Chemical Education, 2022
A laboratory experiment has been devised to train new graduate trainees in the safe and controlled handling of air-sensitive organometallic reagents using Schlenk lines, high vacuum pumps, liquid nitrogen traps, and cannula transfers. The reaction involves the formation of air-, moisture-, and thermally sensitive 2-pyridyllithium, generated in…
Descriptors: Graduate Study, Scientific Concepts, College Science, Science Education
Ivanov, Dragia; Nikolov, Stefan – Physics Education, 2019
In this paper a well-known experiment is considered that is used to demonstrate some aspects of water boiling. It is shown that the currently popular explanation is wrong and a better explanation is proposed, backed up with experimental data. Variations of the experiment are proposed that can be used for a more in-depth examination of the…
Descriptors: Science Experiments, Heat, Water, Scientific Concepts
Manos, Harry – Physics Teacher, 2019
Thomas Young (1773-1829) is best known in the physics community for his double-slit experiment demonstrating the wave property of light and for his work on the tensile properties of solids (Young's modulus). His reputation as a physicist was built almost entirely upon a short, three-year period (1801-1803) of intense work as an instructor in…
Descriptors: Physics, Science Instruction, Science Experiments, Scientific Concepts
Tamilka, Bonjeer – Bulgarian Comparative Education Society, 2023
When the COVID-19 pandemic forced school closures, science, technology, engineering, and mathematics (STEM) teachers were left with the challenging task of devising ways for students to conduct experiments at home. This was necessary because experiments and other hands-on activities are integral to STEM education and are linked to the development…
Descriptors: STEM Education, Distance Education, Electronic Learning, Technology Uses in Education
Durkaya, Figen – Hungarian Educational Research Journal, 2023
In science class, students learn by making and living information, enabling them to make sense of knowledge effectively and permanently and to associate it with daily life. Applied science courses make learning more qualified. While science teaching is carried out in application areas such as laboratories, virtual laboratories are used with the…
Descriptors: Computer Simulation, Science Laboratories, Laboratory Training, Science Education
Kamphorst, Floor; Vollebregt, M. J.; Savelsbergh, E. R.; van Joolingen, W. R. – Science & Education, 2023
Einstein's derivation of special relativity theory (SRT), based on hypothetical reasoning and thought experiments, is regarded as a prime example of physics theory development. In secondary education, the introduction of SRT could provide a great opportunity for students to engage in physics theorizing, but this opportunity is largely being missed…
Descriptors: Physics, Scientific Concepts, Secondary School Science, Science Education
Doucette, Danny; Singh, Chandralekha – Journal of College Science Teaching, 2023
The collaborative nature of introductory college science labs means that labs can play a major role in boosting students' interest in experimental science when they work together in small groups. However, collaboration in lab courses is not always positive for all students. We report on a study that documented how women in mixed-gender groups in a…
Descriptors: Cooperative Learning, Science Experiments, Introductory Courses, Gender Bias
Wannous, Jarier; Horvath, Peter – Physics Teacher, 2023
Measuring permeability in a high school physics course has long been a hard task. However, with the advent of using smartphones in the classroom, it is not only possible but even easily done. This paper offers detailed instructions on how to measure permeability using a smartphone's magnetometer, starting with experimentally discovering the…
Descriptors: Magnets, Telecommunications, Handheld Devices, Physics
Lauren A. Keiller; Iain L. J. Patterson; Dominic M. Stewart; Iain A. Smellie – Journal of Chemical Education, 2023
The use of red cabbage ("Brassica oleracea var. capitata F. rubra") extract as a pH indicator is a versatile and popular demonstration that is employed by educators in many schools and universities. Previous variations of this demonstration have used red cabbage extracts to prepare paper that changes color when solutions of acid or base…
Descriptors: High School Seniors, College Freshmen, Chemistry, Science Instruction
Joana F. C. Silva; Ma´rio T. S. Rosado; Teresa M. R. Maria; Pedro S. Pereira Silva; Manuela Ramos Silva; M. Ermelinda S. Euse´bio – Journal of Chemical Education, 2023
The concept of co-amorphous systems is introduced in an integrated laboratory experiment, designed for advanced chemistry students, using solvent-free, environmentally friendly mechanochemistry. The dual-drug naproxen-cimetidine co-amorphous system (NPX-CIM) is investigated as an example of the emergent field of medicinal mechanochemistry.…
Descriptors: Laboratory Experiments, Chemistry, Science Instruction, Pharmacology
Annie Regan; John O'Donoghue; Carl Poree; Peter W. Dunne – Journal of Chemical Education, 2023
Materials science research has expanded significantly in recent years; a multidisciplinary field, home to an ever-growing number of chemists. However, our general chemistry degree courses have not changed to reflect the rise in interest in this topic. In this paper, we propose a laboratory experiment for the undergraduate chemistry practical…
Descriptors: Science Instruction, Science Experiments, Magnets, Undergraduate Students