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Direct linkCrowther, Molly W. – Journal of Chemical Education, 2008
This article describes an upper-level instrumental laboratory for undergraduates that explores the complementary nature of IR and NMR spectroscopy for analysis of several edible fats and oils that are structurally similar but differ in physical properties and health implications. Five different fats and oils are analyzed for average chain length,…
Descriptors: Spectroscopy, Science Process Skills, Science Instruction, Organic Chemistry
Undergraduate Chemistry Education in Chinese Universities: Addressing the Challenges of Rapid Growth
Gou, Xiaojun; Cao, Haishi – Journal of Chemical Education, 2010
In the past 30 years, university-level chemistry education in China has been experiencing significant changes because of the rapid expansion of its university education system. These changes are reflected in improvements to the existing education goals, classroom teaching methods, textbooks, teaching facilities, teacher profiles, lab activities,…
Descriptors: Teacher Effectiveness, Chemistry, Educational Change, Foreign Countries
Mitchell-Koch, Jeremy T.; Reid, Kendra R.; Meyerhoff, Mark E. – Journal of Chemical Education, 2008
An experiment for the undergraduate quantitative analysis laboratory involving applications of visible spectrophotometry is described. Salicylate, a component found in several medications, as well as the active by-product of aspirin decomposition, is quantified. The addition of excess iron(III) to a solution of salicylate generates a deeply…
Descriptors: Chemistry, Science Experiments, Science Laboratories, College Science
Mills, Kenneth V.; Herrick, Richard S.; Guilmette, Louise W.; Nestor, Lisa P.; Shafer, Heather; Ditzler, Mauri A. – Journal of Chemical Education, 2008
Within the framework of a laboratory-focused, guided-inquiry pedagogy, students discover the Nernst equation, the spontaneity of galvanic cells, concentration cells, and the use of electrochemical data to calculate equilibrium constants. The laboratory experiment we describe here is a continuation of curriculum reform and pedagogical innovation at…
Descriptors: Undergraduate Study, Chemistry, Laboratory Experiments, College Science
Richter-Egger, Dana L.; Hagen, James P.; Laquer, Frederic C.; Grandgenett, Neal F.; Shuster, Robert D. – Journal of Chemical Education, 2010
The integration of student research into a general chemistry laboratory and an environmental geology course has been evaluated for its effectiveness to improve (i) student attitudes about science and chemistry, (ii) student understanding of the nature of experimental science and the scientific method, and (iii) student perceptions of the…
Descriptors: Science Instruction, Scientific Concepts, Science Process Skills, Science Laboratories
Chang, Ming-Mei; DiGennaro, Peter; Macula, Anthony – Biochemistry and Molecular Biology Education, 2009
Plants defend themselves against pathogens via the expressions of disease resistance (R) genes. Many plant R gene products contain the characteristic nucleotide-binding site (NBS) and leucine-rich repeat (LRR) domains. There are highly conserved motifs within the NBS domain which could be targeted for polymerase chain reaction (PCR) cloning of R…
Descriptors: Laboratory Procedures, Genetics, Plants (Botany), Science Instruction
Gayetsky, Lisa E.; Caylor, Craig L. – Physics Teacher, 2007
We describe a simple undergraduate lab in which students determine how the force between two magnetic dipoles depends on their separation. We consider the case where both dipoles are permanent and the case where one of the dipoles is induced by the field of the other (permanent) dipole. Agreement with theoretically expected results is quite good.
Descriptors: Magnets, College Science, Science Laboratories, Undergraduate Study
Page, A.; Moreno, R.; Candelas, P.; Belmar, F. – European Journal of Physics, 2008
In this paper, we show the potential of webcams as precision measuring instruments in a physics laboratory. Various sources of error appearing in 2D coordinate measurements using low-cost commercial webcams are discussed, quantifying their impact on accuracy and precision, and simple procedures to control these sources of error are presented.…
Descriptors: Laboratory Equipment, Science Instruction, Science Laboratories, Physics
Martinez, Antonio; Sanchez-Lopez, Ma del Mar; Moreno, Ignacio – European Journal of Physics, 2007
In this work, we present a simple analysis of binary diffraction gratings with different slit widths relative to the grating period. The analysis is based on a simple phasor technique directly derived from the Huygens principle. By introducing a slit phasor and a grating phasor, the intensity of the diffracted orders and the grating's resolving…
Descriptors: Physics, Science Instruction, Science Experiments, Science Laboratories
Zhou, Xuanwei; Lin, Juan; Yin, Yizhou; Sun, Xiaofen; Tang, Kexuan – Biochemistry and Molecular Biology Education, 2007
A novel course, "Participation in Research Program (PRP)" in life sciences is open for 1st to 3rd year undergraduates. PRP introduces the principles of a variety of biological methods and techniques and also offers an opportunity to explore some specific knowledge in more detail prior to thesis research. In addition, the PRP introduces some…
Descriptors: Scientific Research, Science Laboratories, Undergraduate Study, Research Projects
Wakabayashi, Fumitaka – Journal of Chemical Education, 2008
A new type of DVD spectroscope, the periscope type, is described and the numerical analysis of the observed emission and absorption spectra is demonstrated. A small and thin mirror is put inside and an eighth part of a DVD is used as a grating. Using this improved DVD spectroscope, one can observe and photograph visible spectra more easily and…
Descriptors: Photography, Chemistry, Teaching Methods, Spectroscopy
Pour, Sanaz Barar; Norca, Gregory Benoit; Fradette, Louis; Legros, Robert; Tanguy, Philippe A. – Chemical Engineering Education, 2007
Solid-liquid and liquid-liquid mixing experiments have been developed to provide students with a practical experience on suspension and emulsification processes. The laboratory focuses on the characterization of the process efficiency, specifically the influence of the main operating parameters and the effect of the impeller type. (Contains 2…
Descriptors: Chemical Engineering, Science Laboratories, Science Instruction, Science Experiments
Bumpus, John A.; Lewis, Anne; Stotts, Corey; Cramer, Christopher J. – Journal of Chemical Education, 2007
Experiments suited for the undergraduate instructional laboratory in which the heats of formation of several aliphatic and aromatic compounds are calculated, are described. The experiments could be used to introduce students to commercially available computational chemistry and its thermodynamics, while assess and compare the energy content of…
Descriptors: Undergraduate Study, Thermodynamics, Chemistry, Science Education
Arrington, Caleb A.; Hill, Jameica B.; Radfar, Ramin; Whisnant, David M.; Bass, Charles G. – Journal of Chemical Education, 2008
This article describes a discovery experiment for general chemistry and organic chemistry labs. Although the pinacol rearrangement has been employed in undergraduate organic laboratories before, in this application organic chemistry students act as mentors to students of general chemistry. Students work together using distillation--a new technique…
Descriptors: Mentors, Spectroscopy, Organic Chemistry, Science Laboratories
Shaffer, Christopher D.; Alvarez, Consuelo; Bailey, Cheryl; Barnard, Daron; Bhalla, Satish; Chandrasekaran, Chitra; Chandrasekaran, Vidya; Chung, Hui-Min; Dorer, Douglas R.; Du, Chunguang; Eckdahl, Todd T.; Poet, Jeff L.; Frohlich, Donald; Goodman, Anya L.; Gosser, Yuying; Hauser, Charles; Hoopes, Laura L. M.; Johnson, Diana; Jones, Christopher J.; Kaehler, Marian; Kokan, Nighat; Kopp, Olga R.; Kuleck, Gary A.; McNeil, Gerard; Moss, Robert; Myka, Jennifer L.; Nagengast, Alexis; Morris, Robert; Overvoorde, Paul J.; Shoop, Elizabeth; Parrish, Susan; Reed, Kelynne; Regisford, E. Gloria; Revie, Dennis; Rosenwald, Anne G.; Saville, Ken; Schroeder, Stephanie; Shaw, Mary; Skuse, Gary; Smith, Christopher; Smith, Mary; Spana, Eric P.; Spratt, Mary; Stamm, Joyce; Thompson, Jeff S.; Wawersik, Matthew; Wilson, Barbara A.; Youngblom, Jim; Leung, Wilson; Buhler, Jeremy; Mardis, Elaine R.; Lopatto, David; Elgin, Sarah C. R. – CBE - Life Sciences Education, 2010
Genomics is not only essential for students to understand biology but also provides unprecedented opportunities for undergraduate research. The goal of the Genomics Education Partnership (GEP), a collaboration between a growing number of colleges and universities around the country and the Department of Biology and Genome Center of Washington…
Descriptors: Student Research, Active Learning, Biology, Research Opportunities
