NotesFAQContact Us
Collection
Advanced
Search Tips
What Works Clearinghouse Rating
Showing 1 to 15 of 375 results Save | Export
Peer reviewed Peer reviewed
Direct linkDirect link
Lincoln, James – Physics Teacher, 2019
There have been a few methods described in this journal and elsewhere for measuring the wavelength of the standing electromagnetic waves in a microwave oven. Typically, these involve melting chocolate, cheese, or some other substance on a plate that is prevented from rotating. In this article I describe a more dynamic and colorful technique that…
Descriptors: Physics, Science Instruction, Visualization, Scientific Concepts
Peer reviewed Peer reviewed
Direct linkDirect link
Overly, Kenneth R. – Journal of Chemical Education, 2019
An experiment for the undergraduate organic chemistry laboratory involving a method for the isolation of eugenol from cloves has been developed. The experiment employs microwave-assisted extraction (MAE) of the essential oil from whole cloves using aqueous ethanol and the subsequent isolation of eugenol by acid-base extraction. The MAE allows for…
Descriptors: Undergraduate Students, College Science, Organic Chemistry, Science Experiments
Peer reviewed Peer reviewed
Direct linkDirect link
Mullins, Joseph J.; Prusinowski, Allen F. – Journal of Chemical Education, 2019
A microwave-promoted synthesis of a carbocyclic curcuminoid has been developed for the undergraduate organic chemistry laboratory curriculum. The experiment features several teaching points: A novel Knoevenagel iminium-mediated condensation forms a highly conjugated, intensely colored natural product. Reaction occurs uniquely at the less acidic…
Descriptors: Organic Chemistry, Laboratory Experiments, Undergraduate Students, Scientific Concepts
Peer reviewed Peer reviewed
Direct linkDirect link
Abdul-Razzaq, W.; Bushey, R.; Winn, G. – Physics Education, 2011
Physics is essential for students who want to succeed in science and engineering. Excitement and interest in the content matter contribute to enhancing this success. We have developed a laboratory experiment that takes advantage of microwave ovens to demonstrate important physical concepts and increase interest in physics. This experiment…
Descriptors: National Standards, Physics, Radiation, Engineering
Peer reviewed Peer reviewed
Direct linkDirect link
Diplock, Kenneth J.; Jones-Bitton, Andria; Leatherdale, Scott T.; Rebellato, Steven; Hammond, David; Majowicz, Shannon E. – Journal of School Health, 2019
Background: We explored priority areas of food safety education needed by high-school students within Ontario, Canada. Methods: We analyzed transcripts from semistructured interviews with 20 experts in food safety, food safety education in youth, and high-school education in Ontario. Inductive thematic analysis was used to identify priority food…
Descriptors: Foreign Countries, Food, Safety Education, High School Students
Peer reviewed Peer reviewed
Direct linkDirect link
Rehrig, Gwendolyn L.; Cheng, Michelle; McMahan, Brian C.; Shome, Rahul – Cognitive Research: Principles and Implications, 2021
A major problem in human cognition is to understand how newly acquired information and long-standing beliefs about the environment combine to make decisions and plan behaviors. Over-dependence on long-standing beliefs may be a significant source of suboptimal decision-making in unusual circumstances. While the contribution of long-standing beliefs…
Descriptors: Cognitive Processes, Decision Making, Semantics, Bayesian Statistics
Peer reviewed Peer reviewed
Direct linkDirect link
Levine, Zachary H. – Physics Teacher, 2018
An attempt to calibrate a conventional oven led to making a measurement of a thermophysical property of water using items found in the author's home. Specifically, the ratio of the energy required to heat water from the melting point to boiling to the energy required to completely boil away the water is found to be 5.7. This may be compared to the…
Descriptors: Thermodynamics, Heat, Water, Science Education
Peer reviewed Peer reviewed
Direct linkDirect link
DeFrancesco, Heather; Dudley, Joshua; Coca, Adiel – Journal of Chemical Education, 2018
An undergraduate experiment for the organic laboratory is described that utilizes microwave heating to prepare 5- substituted 1H-tetrazole derivatives through a (3 + 2) cycloaddition between aryl nitriles and sodium azide. The reaction mixture is analyzed by thin layer chromatography. The products are purified through an acid-base extraction and…
Descriptors: Undergraduate Students, Organic Chemistry, Science Experiments, Laboratory Experiments
Peer reviewed Peer reviewed
Direct linkDirect link
D'Anna, Michele; Corridoni, Tommaso – Physics Teacher, 2015
Thin film interference manifests itself in a wide range of visually pleasing situations in everyday life (in the colored effects caused by a drop of oil on water, in soap bubbles, etc.) and is also involved in important technical applications (semi-reflecting mirrors, anti-reflection lenses, etc.). Yet, despite its familiarity, high school…
Descriptors: Science Experiments, Science Activities, High School Students, Scientific Concepts
Peer reviewed Peer reviewed
Direct linkDirect link
Duerden, Amanda; Moon, Nicole; Grubbs, G. S., II – Journal of Chemical Education, 2021
Few laboratory exercises exist that introduce undergraduate students to both the concepts and instrumentation used in rotational spectroscopy. Because of this gap in undergraduate laboratory training, a teaching laboratory for the pure rotational spectroscopy of benzonitrile has been developed and reported. Owing to benzonitrile's recent discovery…
Descriptors: Science Laboratories, Laboratory Equipment, Spectroscopy, Astronomy
Peer reviewed Peer reviewed
Direct linkDirect link
Nguyen, Vu D.; Birdwhistell, Kurt R. – Journal of Chemical Education, 2014
An update to the thermochromic cobalt(II) chloride equilibrium demonstration is described. Filter paper that has been saturated with aqueous cobalt(II) chloride is heated for seconds in a microwave oven, producing a color change. The resulting pink and blue map is used to colorfully demonstrate Le Châtelier's principle and to illuminate the…
Descriptors: Science Instruction, Chemistry, Color, Thermodynamics
Peer reviewed Peer reviewed
Direct linkDirect link
Khan, Faraz Yusuf; Srivastava, Aaditya Ranjan; Bajpai, Shrish; Kidwai, Naimur Rahman – Comparative Professional Pedagogy, 2018
The establishment and development of Radio frequency (RF) and Microwave Engineering (ME) from its inception in Electrical and Electronics Engineering to having its own distinct identity in the 21st century has been explored in this paper. Overview of contributions by India to the field of RF and Microwave Engineering have been mentioned. Present…
Descriptors: Foreign Countries, Undergraduate Students, Engineering Education, Interdisciplinary Approach
Peer reviewed Peer reviewed
Direct linkDirect link
Larraza, Isabel; Malko, Rada – Journal of Chemical Education, 2020
An increased public knowledge of the health benefits of unsaturated fats has resulted in a surge of different cooking oils. Intense advertising of various oil brands claiming to provide the best dietary recommendations often leaves buyers unclear of what their best choices are. Herein, we describe a research-based project for upper-level…
Descriptors: Chemistry, Science Instruction, Laboratory Experiments, Food
Peer reviewed Peer reviewed
Direct linkDirect link
Soares, Pedro; Fernandes, Carlos; Chavarria, Daniel; Borges, Fernanda – Journal of Chemical Education, 2015
In recent years, the use of boron-containing reagents in palladium-assisted C-C coupling reactions (the Suzuki reaction) has gained prominence due to the vast array of reagents commercially available. Consequently, the generation of carbon-carbon bonds, namely of functionalized biphenyl systems, is at present considered the backbone of organic…
Descriptors: Science Instruction, Science Laboratories, Laboratory Equipment, Teaching Methods
Peer reviewed Peer reviewed
Direct linkDirect link
Baar, Marsha R. – Journal of Chemical Education, 2018
An inquiry-based experiment for the organic chemistry laboratory was developed to provide students with a cognitively rich research experience. Student teams were charged with optimizing the reaction conditions for the Williamson ether synthesis of 2- fluorophenetole from 2-fluorophenol, ethyl bromide, and potassium carbonate in either absolute…
Descriptors: Organic Chemistry, Student Experience, Student Research, Laboratory Experiments
Previous Page | Next Page »
Pages: 1  |  2  |  3  |  4  |  5  |  6  |  7  |  8  |  9  |  10  |  11  |  ...  |  25