Hydrogen is a very important industrial gas in chemical processes. It is very volatile; therefore, it can escape from the process units and its mass balance is not always correct. In many industrial processes where hydrogen is reacted, kinetics are often related to hydrogen pressure. The right thermodynamic properties of hydrogen can be found for…

Post-retrieval interference with a memory has uncovered a phenomenon known to the field as reconsolidation. In this article, we will review the specific molecular mechanisms that have been implicated in reconsolidation. As a result of numerous studies over the past five years, it can now be said with a fair amount of certainty that reconsolidation…

An uncomplicated organic synthesis experiment with modafinil that showcases a prevalent modern antinarcoleptic drug as an approach to inspire students to learn real-world relevance is presented. The synthesis and analysis of racemic 2-(diphenylmethyl-sulfinyl)acetamide, (plus or minus)-modafinil, is suitable as a midlevel undergraduate organic…

Low-efficiency solar cells for educational purposes can be simply made in school or home environments using wet-chemistry techniques and readily available chemicals of generally low toxicity. Instructions are given for making solar cells based on the heterojunctions Cu/Cu[subscript 2]O, Cu[subscript 2]O/ZnO and Cu[subscript 2]S/ZnO, together with…

An alternative method that uses a simple apparatus to measure vapor pressure versus temperature in a closed system, in which the total pressure is the vapor pressure of the liquid sample, is described. The use of this apparatus gives students a more direct picture of vapor pressure than the isoteniscope method and results have generally been quite…

An experiment is developed that requires the use of the NMR spectrometer via a NOESY1D experiment to determine the diastereoselectivity in the reduction of alpha-methylbenzoin with various reducing agents. Students must synthesize racemic alpha-hydroxyketones, perform reductions under chelating and non-chelating conditions, and quantitatively…

The application of Lewis concept that provides students opportunity to predict and understand reaction behavior and themes in introductory chemistry of structure-property relationships of atoms, ions, and molecules is narrated. The general sequence takes the student through atomic structural theory, electronic configuration, periodicity, chemical…

Providing a biotechnology experience for students can be challenging on several levels, and time is a real constraint for many experiments. Many DNA based methods require a gel electrophoresis step, and although some biotechnology procedures have convenient break points, gel electrophoresis does not. In addition to the time required for loading…

This book provides fun experiments that teach known concepts about the human body. It is designed to teach facts, concepts, and problem-solving strategies. The scientific concepts presented can be applied to many similar situations, and the exercises and activities were selected for their ability to be explained in basic terms with little…

This publication is part of a larger project involving partnerships between high school biology teachers and neuroscientists. It contains neuroscience laboratories and classroom activities, most of which provide opportunities for students to design and conduct their own experiments. Each lab contains directions for both teachers and students and…

Article described an experiment in which students learned to investigate the sound of water particles falling over rocks as well as the change in composition of rocks as they travel along the riverbed. (RK)

Paper presented at the 1968 Central Association of Science and Mathematics Teachers (CASMT) Convention, St. Louis, Missouri

Reports on research concerning the formation, location, and composition of manganese modules. (CP)

Describes a freshman chemistry experiment in which students separate and identify commonly used drugs by thin-layer chromatography. Materials needed, procedures used, and typical results obtained are included. (JN)