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Direct linkMundle, Scott O. C.; Opinska, Liliana Guevara; Kluger, Ronald; Dicks, Andrew P. – Journal of Chemical Education, 2011
An upper-level mechanistic organic experiment is outlined where undergraduates measure kinetic rate constants for decarboxylation of pyrrole-2-carboxylic acid by the initial-rates method. UV spectroscopy is used to monitor reactant disappearance in both hydrochloric acid and deuterium chloride at different temperatures. Individual data are pooled…
Descriptors: Organic Chemistry, College Science, Undergraduate Students, Advanced Students
Derevjanik, Mario; Badri, Solmaz; Barat, Robert – Chemical Engineering Education, 2011
This experiment and analysis offer an economic yet challenging semi-batch reactor experience. Household bleach is pumped at a controlled rate into a batch reactor containing pharmaceutical hydrogen peroxide solution. Batch temperature, product molecular oxygen, and the overall change in solution conductivity are metered. The reactor simulation…
Descriptors: Chemistry, Undergraduate Study, College Science, Science Laboratories
Wilson, Alpha E. – Physics Teacher, 2011
To jog around the periphery of a carousel at rest requires that the jogger experience a constant state of acceleration perpendicular to the direction of motion and directed toward the axis of rotation (centripetal). The jogger could achieve this centripetal acceleration by leaning inward, thereby using a horizontal weight component to provide the…
Descriptors: Physics, Mechanics (Physics), Kinetics, Motion
Winkel, Brian – International Journal of Mathematical Education in Science and Technology, 2011
We discuss the need for devoting time in differential equations courses to modelling and the completion of the modelling process with efforts to estimate the parameters in the models using data. We estimate the parameters present in several differential equation models of chemical reactions of order n, where n = 0, 1, 2, and apply more general…
Descriptors: Kinetics, Chemistry, Calculus, Equations (Mathematics)
Tural, Guner – Asia-Pacific Forum on Science Learning and Teaching, 2014
The effects of the context-based approach have been discussed in educational settings as one of the innovative instructional approaches. Many countries throughout the world have implemented context-based physics projects or programs to make physics more relevant to students' lives. This paper examined the effects of context-based physics…
Descriptors: Science Instruction, Physics, College Science, Context Effect
Hurley, Sarah Jessica; Murray, Alexa Lee; Cormas, Peter – Science and Children, 2014
This article describes a lesson taught in a designated English Language Learner (ELL) classroom in an elementary school in Pawtucket, Rhode Island, using a sheltered instruction approach. Eighty one percent of the students at this school are from diverse ethnic backgrounds where 25 per cent of them receive ELL services. A variety of languages are…
Descriptors: English Language Learners, Course Descriptions, Elementary School Science, Student Diversity
Bauer, Jurica; Tomisic, Vladislav; Vrkljan, Petar B. A. – Journal of Chemical Education, 2012
A laboratory exercise has recently been reported in which the students use the initial rates method based on the clock reaction approach to deduce the rate law and propose a reaction mechanism for the oxidation of iodide by iron(III) ions. The same approach is used in the exercise proposed herein; the students determine the dependence of the…
Descriptors: Science Instruction, Chemistry, Kinetics, Secondary School Science
McLaughlin, Cheryl A.; McLaughlin, Felecia C.; Pringle, Rose M. – Science and Children, 2013
This article presents the experiences of Miss Felecia McLaughlin, a fourth-grade teacher from the island of Jamaica who used the model proposed by Bass et al. (2009) to assess conceptual understanding of four of the six types of simple machines while encouraging collaboration through the creation of learning teams. Students had an opportunity to…
Descriptors: Grade 4, Scientific Concepts, Scientific Principles, Mechanics (Process)
Bautista, Alfredo; Roth, Wolff-Michael; Thom, Jennifer S. – Interchange: A Quarterly Review of Education, 2011
Psychologists, philosophers, and educators have traditionally interpreted the phenomenon of insight learning as the result of the sudden comprehension of abstract/conceptual ideas. The present article shows that such phenomenon may also follow and emerge from the kinetic movements of the human body; that is, we conceptualize insight learning as a…
Descriptors: Kinetics, Motion, Human Body, Learning
Hardee, John R.; Delgado, Bryan; Jones, Wray – Journal of Chemical Education, 2011
The kinetic parameters for the conversion of alpha-D-glucose to beta-D-glucose were measured using a blood glucometer. The reaction order, rate constant, and Arrhenius activation energy are reported for the noncatalyzed reaction and turnover number and Michaelis constant are reported for the reaction catalyzed by porcine kidney mutarotase. The…
Descriptors: College Science, Undergraduate Students, Kinetics, Laboratories
Flynn-Charlebois, Amber; Burns, Jamie; Chapelliquen, Stephanie; Sanmartino, Holly – Journal of Chemical Education, 2011
A low-cost biochemistry experiment is described that demonstrates current techniques in the use of catalytic DNA molecules and introduces a nonradioactive, nonfluorescent, inexpensive, fast, and safe method for monitoring these nucleic acid reactions. The laboratory involves the exploration of the 10-23 DNA enzyme as it cleaves a specific RNA…
Descriptors: Undergraduate Students, Genetics, Science Instruction, Science Laboratories
Wang, He; Toner, Michael M.; Lemonda, Thomas J.; Zohar, Mor – Research Quarterly for Exercise and Sport, 2010
The purpose of this study was to investigate the influence of cold-water immersion on kinematics and kinetics during a drop-landing task. On four separate occasions, 9 men performed drop-landings from a 0.6-m platform to a force platform following 30-min immersion to the hip-joint in thermoneutral water (control; 34 [degrees]C) and in cold water…
Descriptors: Kinetics, Multivariate Analysis, Mechanics (Physics), Motion
Bril, Blandine; Rein, Robert; Nonaka, Tetsushi; Wenban-Smith, Francis; Dietrich, Gilles – Journal of Experimental Psychology: Human Perception and Performance, 2010
Tool use can be considered a particularly useful model to understand the nature of functional actions. In 3 experiments, tool-use actions typified by stone knapping were investigated. Participants had to detach stone flakes from a flint core through a conchoidal fracture. Successful flake detachment requires controlling various functional…
Descriptors: Equipment, Kinetics, Models, Expertise
Download full textFedotov, Alex; Farah, Shadia; Farley, Daithi; Ghani, Naureen; Kuo, Emmy; Aponte, Cecielo; Abrescia, Leo; Kwan, Laiyee; Khan, Ussamah; Khizner, Felix; Yam, Anthony; Sakeeb, Khan; Grey, Daniel; Anika, Zarin; Issa, Fouad; Boussayoud, Chayama; Abdeldayem, Mahmoud; Zhang, Alvin; Chen, Kelin; Chan, Kameron Chuen; Roytman, Viktor; Yee, Michael – NCSSSMST Journal, 2010
This article describes the projects on solar hydrogen powered vehicles using water as fuel conducted by teams at Brooklyn Technical High School. Their investigations into the pure and applied chemical thermodynamics of hydrogen fuel cells and bio-inspired devices have been consolidated in a new and emerging sub-discipline that they define as solar…
Descriptors: Fuels, Thermodynamics, Sampling, Chemistry
Simonson, Shawn R.; Shadle, Susan E. – Journal of STEM Education: Innovations and Research, 2013
Process Oriented Guided Inquiry Learning (POGIL) uses specially designed activities and cooperative learning to teach content and to actively engage students in inquiry, analytical thinking and teamwork. It has been used extensively in Chemistry education, but the use of POGIL is not well documented in other physical and biological sciences. This…
Descriptors: Educational Strategies, Cooperative Learning, Teaching Methods, Biological Sciences
