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Showing 1 to 15 of 1,055 results Save | Export
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Krehbiel, Joel D.; Schroeder, Kenton N.; Suzuki, Harune; Kilmer, Nelson – Physics Teacher, 2019
Physics and chemistry students learn several methods to determine the density of materials. While measuring the mass of materials is usually simple, volume measurements are more complex. For simple shapes the volume may be determined by measuring its geometry; for more complex shapes students often use Archimedes' principle. However, neither of…
Descriptors: Physics, Chemistry, Scientific Concepts, Science Experiments
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Erickson, Brian; Crews, Tracy – Science Teacher, 2019
This article describes a five-lesson curriculum that introduces students to the primary cause, multiple predicted impacts, and possible solutions to ocean acidification. It builds upon the strengths of over 90 existing teaching resources on the topic while also contributing new ways to teach about the impacts and solutions to this pressing…
Descriptors: Science Instruction, Oceanography, Teaching Methods, Science Teachers
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Kilmer, Nelson; Krehbiel, Joel D. – Physics Teacher, 2019
Gay-Lussac's law states that the pressure of an ideal gas is directly proportional to its absolute temperature if the volume is constant. Students observe this relationship by taking measurements on the pressure of gas in a flask or metal sphere at different temperatures and then extrapolate the data to estimate absolute zero. In our college…
Descriptors: Physics, Science Instruction, Science Experiments, Teaching Methods
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Limpanuparb, Taweetham; Kanithasevi, Siradanai; Lojanarungsiri, Maytouch; Pakwilaikiat, Puh – Journal of Chemical Education, 2019
We discuss the use of a simple piece of equipment made of a 50 mL syringe attached to a 2 mL graduated pipet to demonstrate Boyle's law and Charles's law. A plot of the hydrostatic pressure against the reciprocal of the volume of the gas read from the equipment is linear as discussed in the paper and gives the atmospheric pressure at the…
Descriptors: Science Instruction, Science Experiments, Science Laboratories, Laboratory Experiments
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Elliott, Leslie Atkins; Sippola, Elizabeth; Watkins, Jeffrey – Journal of Chemical Education, 2019
In this article, we describe how the Gaussian Gun, a simple configuration of magnets and ball bearings, can be leveraged to connect ideas from physics to representations and ideas that are central to chemistry and challenging for students to learn. In particular, we show how the Gaussian Gun, an arrangement of ball bearings and magnets, models…
Descriptors: Science Instruction, Chemistry, Physics, Magnets
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Neuman, Annette W.; Harmon, Brenda B. – Journal of Chemical Education, 2019
An integrated lab-lecture project, known as the mini research project, was developed for a medicinal chemistry course for nonscience majors. In the lecture component of this project, students choose a plant essential oil with documented biological activity and prepare a literature review describing the importance, history, and current use of the…
Descriptors: Science Instruction, Science Laboratories, Chemistry, Nonmajors
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Calcabrini, Mariano; Onna, Diego – Journal of Chemical Education, 2019
The study of gels and their properties is a compelling topic both technologically and scientifically, and should therefore be emphasized in chemistry and material science syllabuses. In the present laboratory experiment, we propose two experiences, aimed at introducing gelation and gel transport properties using silica gels made from sodium…
Descriptors: Science Instruction, Science Laboratories, Laboratory Experiments, Science Experiments
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Lopper, Matthew E. – Journal of Chemical Education, 2019
This paper describes a responsive, digital periodic table that has been specifically designed as a visual aid for high school or college chemistry classrooms and lecture halls. The periodic table runs in a web browser and can therefore be used in any classroom that has a digital projector and screen. It features click-to-highlight table cells that…
Descriptors: Visual Aids, Computer Uses in Education, Chemistry, Secondary School Science
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Raff, Lionel M.; Cannon, William R. – Journal of Chemical Education, 2019
For 26 years, it has been assumed by some that the thermodynamics of open-system biochemical reactions must be executed by performing Legendre transformations on the terms involving the species whose concentrations are being held fixed. In contrast, standard nontransformed thermodynamics applies to chemical processes. However, it has recently been…
Descriptors: Science Instruction, Chemistry, College Science, Scientific Concepts
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Gascon, Katherine N.; Weinstein, Steven J.; Antoniades, Michael G. – Journal of Chemical Education, 2019
The effect of surfactant adsorption on surface tension, as well as associated thermodynamic concepts are introduced in a laboratory experiment designed for undergraduate students. Using a reliable and accessible method, students measure the surface tension of aqueous solutions at different concentrations of sodium dodecyl sulfate. Students collect…
Descriptors: Science Instruction, Thermodynamics, Scientific Concepts, Science Laboratories
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Croisant, Michael; Bretz, Stacey Lowery; Konkolewicz, Dominik – Journal of Chemical Education, 2019
The ACS Guidelines for bachelor's degrees in chemistry call for the curriculum to include polymer chemistry principles and the synthesis of different classes of macromolecules. Organic chemistry can provide an important introduction to polymer chemistry principles, and photochemically induced radical polymerization is one method for generating…
Descriptors: Chemistry, Science Instruction, Inquiry, Discovery Learning
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Ferraro, Giovanni; Fratini, Emiliano – Journal of Chemical Education, 2019
A procedure for one-pot preparation and characterization of silver 1D nanostructures is described. The main advantages of this synthetic approach are the simplicity and reproducibility, where the size of the final product can be controlled just by changing the reaction time. This experiment is designed as a laboratory introduction to colloidal…
Descriptors: Color, Science Instruction, Teaching Methods, Undergraduate Students
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Warzecha, Evan; Berto, Timothy C.; Wilkinson, Chad C.; Berry, John F. – Journal of Chemical Education, 2019
A new undergraduate inorganic chemistry laboratory experiment is presented. An introduction of the spectrochemical series and ligand exchange is explored using the coordination complex dirhodium tetraacetate, Rh[subscript 2](OAc)[subscript 4]. Students have measured the absorption spectra of the Rh[subscript 2] complex in the presence of various…
Descriptors: Laboratory Experiments, Science Instruction, Molecular Structure, Chemistry
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Pérez-Mariño, Ángel M.; Blanco, M. Carmen; Buceta, David; López-Quintela, M. Arturo – Journal of Chemical Education, 2019
Until now, the concept of metal (0) atomic quantum clusters or nanoclusters (NCs) and their increasing role in nanotechnology due to their novel and exceptional properties in important industrial fields (such as catalysis) has not been included at the education level. Here, syntheses of both metal nanoparticles (NPs) and metal nanoclusters (with…
Descriptors: Science Instruction, Chemistry, Laboratory Experiments, Molecular Structure
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Kent, James E.; Bell, Nicholle G. A. – Journal of Chemical Education, 2019
NMR is a fundamental part of any undergraduate chemistry degree, and training students how to measure and interpret NMR spectra is essential for postgraduate research or chemistry-based careers. Traditionally, the undergraduate laboratory experience with NMR is restricted to sample submission for NMR analysis, which is typically conducted by a…
Descriptors: Chemistry, Science Instruction, College Science, Hands on Science
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