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Showing 1 to 15 of 360 results Save | Export
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Smith, Catherine J.; Mansfield, Steven J.; Anderson, Edward A.; Burton, Jonathan W. – Journal of Chemical Education, 2019
Organic synthesis in a modern research laboratory uses state-of-the-art equipment to provide inert atmospheres, track reaction progress, and facilitate the purification of intermediates. Such facilities are not available in a high school laboratory. In this paper, synthetic organic chemistry is taken back to basics: A four step total synthesis of…
Descriptors: Science Instruction, Laboratory Experiments, Universities, Foreign Countries
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Noei, Nima; Imani, Iman Mohammadi; Wilson, Lee D.; Azizian, Saeid – Journal of Chemical Education, 2019
A low-cost and simple setup to measure the densities of liquids is introduced herein. The results and reliability of this setup were evaluated for pure liquids, water-ethanol binary mixtures, and aqueous NaCl solutions. The constructed densitometer provided density values with acceptable relative errors (less than ±3.0%), which were compared to…
Descriptors: Chemistry, Science Education, Science Instruction, Laboratory Experiments
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Barrera, Luis A.; Alma C. Escobosa; Alsaihati, Laila S.; Noveron, Juan C. – Journal of Chemical Education, 2019
Herein we present a modified iodine clock experiment which replaces starch with cellulose paper. This provides the reaction with a white solid surface in which color change can be clearly observed and reduces reagent amounts required to 540 µL per group. After data acquisition, students are required to calculate reaction orders and the reaction…
Descriptors: Science Experiments, Chemistry, Kinetics, Science Laboratories
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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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Boys, Alexander J.; Walsh, Mark C. – Journal of Chemical Education, 2019
Elementary and middle school science curricula typically focus on generating an interest in science and engineering through the use of hands-on activities that demonstrate specific concepts. Laboratory activities designed in this manner often circumvent some of the main challenges that engineers and scientists face, namely balancing advantages and…
Descriptors: Elementary School Students, Middle School Students, Science Instruction, Science Laboratories
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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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Pino, Hernan; Pastor, Vanesa; Grimalt-Álvaro, Carme; López, Víctor – Journal of Chemical Education, 2019
In this article, a low-cost and pocket-sized setup for measuring CO[subscript 2] is presented. This setup is based on Arduinos, making it economic and open to modifications or improvements that satisfy other needs. It is composed of an Arduino board, a CO[subscript 2] sensor, an SD-card module, and a control panel. The device has been tested in…
Descriptors: Measurement Equipment, Computer Uses in Education, Chemistry, Elementary School Science
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LeSuer, Robert J. – Journal of Chemical Education, 2019
Consumer-grade manufacturing tools such as 3D printers are becoming increasingly prevalent in STEM education environments, especially as tools to develop inexpensive, tactile visualization models. Presented here is a workflow for creating 3D-printed periodic tables displaying a variety of trends from traditionally taught relationships such as…
Descriptors: Educational Technology, Hands on Science, Printed Materials, Computer Peripherals
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Tan, Shun Yu; Hölttä-Otto, Katja; Anariba, Franklin – Journal of Chemical Education, 2019
A hands-on design activity named "electrochemistry designette" that incorporates design thinking with the aims to strengthen electrochemistry concepts, introduce prototyping ideas, encourage student class participation, and foster creativity is presented. This active learning activity, which lies at the interface of design and…
Descriptors: Chemistry, Science Education, Engineering, Hands on Science
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Wiggins, Marcie B.; Heath, Emma; Alcántara-García, Jocelyn – Journal of Chemical Education, 2019
The interface of art and science provides a broad range of educational and collaborative projects at various learning stages. Therefore, the use of historic artists' materials for teaching chemistry is receiving more attention. We prepared and used copper acetate (verdigris pigment) for a series of interconnected, lab-based activities, which can…
Descriptors: Chemistry, Science Instruction, College Science, Undergraduate Study
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Menon, Deepika; Devadas, Mary Sajini – Journal of Chemical Education, 2019
The new approach to teaching science presented by the Next Generation Science Standards (NGSS) warrants training high-quality science, technology, engineering, and mathematics (STEM) teachers to prepare the future STEM workforce. We share the implementation of an energy lesson using a nanoscience approach, well-aligned with the NGSS vision, in a…
Descriptors: Science Instruction, Hands on Science, Manipulative Materials, Science Laboratories
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Schneider, Elia M.; Bärtsch, Amadeus; Stark, Wendelin J.; Grass, Robert N. – Journal of Chemical Education, 2019
A simple synthesis of fluorescent carbon quantum dots from lemon juice is described to introduce advanced high-school students and undergraduate college students to nanoparticle synthesis and quantum dots. The synthesis is based on the carbonization of lemon juice using only a hot plate stirrer. Column chromatography is used to separate different…
Descriptors: Science Instruction, Teaching Methods, High School Students, Foreign Countries
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Dean, Natalie L.; Ewan, Corrina; Braden, Douglas; McIndoe, J. Scott – Journal of Chemical Education, 2019
Comprehension of the 3D structure of objects usually represented in 2D is a critical part of understanding molecular geometries. The frequency with which students actually get hands-on with 3D molecular structures is often limited to a singular laboratory session. We sought to develop a set of molecular shapes that were inexpensive enough not only…
Descriptors: Science Instruction, Chemistry, Molecular Structure, Science Laboratories
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Njoki, Peter N. – Journal of Chemical Education, 2019
A laboratory experiment has been developed to illustrate the transformation of silver nanoparticles (Ag NPs) in water containing phosphate anions. The experiment, conducted by high school students, involved hands-on learning to synthesize and characterize Ag NPs via ultraviolet-visible (UV-vis) spectroscopy. This was followed by a UV-vis probe of…
Descriptors: High School Students, Science Experiments, Chemistry, Science Instruction
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Snitynsky, Ryan B.; Rose, Kerry; Pegg, Jerine M. – Journal of Chemical Education, 2019
Since 2015, a partnership between the Canadian Glycomics Network and the University of Alberta's Centre for Mathematics, Science, and Technology Education has provided opportunities for high-school teachers to immerse themselves in academic research environments. Drawing upon this experience, the teacher participants have created a library of…
Descriptors: Secondary School Science, Science Instruction, Partnerships in Education, Chemistry
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