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Identifying Systems Thinking Components in the School Science Curricular Standards of Four Countries
Chiu, Mei-Hung; Mamlok-Naman, Rachel; Apotheker, Jan – Journal of Chemical Education, 2019
Chemistry plays an important role in developing scientific theories to describe, explain, and predict the physical world and to produce useful products for improving quality of life throughout history. To arouse student awareness of the value and importance of learning chemistry and becoming chemistry literate, we propose an application of systems…
Descriptors: Systems Approach, Chemistry, Academic Standards, Science Education
Kornfeld, Jeannie; Stokoe, Scott – Journal of Chemical Education, 2019
Chemistry education has an important role in creating a sustainable path forward for humanity. By connecting chemistry education to a fuller understanding of the world, citizens and scientists will be more effective in addressing the coming complex challenges. This article presents a new approach to introducing high school chemistry that links to…
Descriptors: Chemistry, Systems Approach, Scientific Literacy, Secondary School Science
Zowada, Christian; Siol, Antje; Gulacar, Ozcan; Eilks, Ingo – Journal of Chemical Education, 2019
Phosphates are essential components of any efficient fertilizer. Natural phosphate rock is, however, not available in every part of the world. According to the European Commission, phosphate rock has high economic importance as well as a certain supply risk--at least for Europe. For these reasons, environmental technology research has received a…
Descriptors: Chemistry, Science Instruction, Teaching Methods, High School Students
Murphy, Kathleen C.; Dilip, Meghna; Quattrucci, Joseph G.; Mitroka, Susan M.; Andreatta, Jeremy R. – Journal of Chemical Education, 2019
A summer workshop was offered to inner-city high school students to explore the sustainability of their consumer choices using a systems thinking model. Students learned about related environmental or health issues due to the manufacturing, use, or disposal of common household products. Then, in the laboratory, they performed experiments to…
Descriptors: Systems Approach, Chemistry, Science Education, Summer Programs
Engaging Preservice Secondary Science Teachers in an NGSS-Based Energy Lesson: A Nanoscience Context
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
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
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
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
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
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
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
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
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
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
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