One of the most important aspects associated with the modern production of chemicals is sustainability. To teach students and young scientists to design their research in the spirit of "sustainable development," students should be made accustomed to seeking solutions that are not only efficient and cost-effective but also safe and…

Chemistry is a difficult subject for many students. The content is challenging, and students often enter chemistry classes with preconceived ideas about chemical phenomena which may or may not align with scientific ideas (Gabel, 1999; Johnstone, 1991, 1993; Nakhleh, 1992). The purpose of this study was to understand high school students'…

Undergraduate research is an important experience that increases retention, ownership, and learning. Integrating research experiences into the classroom is the focus of course-based undergraduate research education (CUREs) and has become an important tool in curricula of many universities. This article will serve as a guide for those interested in…

In this work, we have developed a versatile three-in-one single beam visible colorimeter for undergraduate laboratory courses. The battery and mains electricity supply (utility power), wired and wireless data logging, and 3D-printed components are three important highlights of the developed visible colorimeter. The system is based on a low-cost…

This study investigated the strategies students in general chemistry and analytical chemistry courses used before and after instruction to solve a volumetric analysis problem in which the molar ratio was not 1:1. Questions like this have historically been very challenging for high school and undergraduate students. Student writing on open-response…

The "Golden Penny" demonstration is a popular experiment that involves treating copper coins with chemical reagents to form brass, an alloy of copper and zinc that has a golden color. Reported here is a very simple modification for forming golden color on copper coins that does not require the use of chemical reagents. Instead, golden…

The concept of "like dissolves like" is explored using a solvent extraction demonstration appropriate for first-year chemistry students. Equal volumes of aqueous methyl red and blue copper(II) sulfate form a purple solution. 1-Pentanol is added and floats on top as a clear layer due to its lower density and low water solubility. Vigorous…

Scientific methods have received widespread attention in recent years. Based on the analytical framework derived from Brandon's matrix consisting of four categories of scientific methods, this paper aims to conduct a content analysis to examine how the diversity of scientific methods is represented in college entrance chemistry examination papers…

In recent years, efforts to transform scientific information produced in basic sciences into technology to facilitate daily life have been increasing. In this sense, the perspective of entrepreneurship gains importance in basic sciences. This study aims analyze documents published on entrepreneurship in basic sciences (physics, chemistry, biology)…

There has been an increase in the number of studies about educational scenarios aimed at promoting argumentation. Special attention is given to scenarios involving case studies. In this article, we report on the application of an interrupted case study to develop argumentation skills supported by information and communication technologies. The…

Especially since the COVID-19 pandemic when teachers might have found or created videos for students to watch, flipped classroom methodology has interested many secondary-level chemistry teachers. However, as the secondary coauthor teachers here found, most of the research on the effectiveness of flipped classroom methodology has been performed at…

An adipic acid esterification experiment suitable for graduate students has been developed to describe the industrial manufacture of plasticizers. Students first follow the progress of the reaction with simple acid/base titration enabling measurement of the acid number. During the workup of the reaction mixture, they learn how to manage the…

Reported herein is a chemistry experiment integrating polymer chemistry and instrumental analysis for the juniors majoring in chemistry. This experiment has a different scheduling framework than traditional experiments with a fixed lab period and schedule. The students arrange their experiment flexibly and individually. Styrene maleic anhydride…

Here, we present a laboratory activity in which the students work on an analysis of a questioned document that was written with one out of five possible pens. As a forensics study, the activity applied chemistry and analytical chemistry tools to solve the case. The students were able to apply polarity and solubility concepts to select and discard…

A new experiment using laser ablation with inductively coupled plasma mass spectrometry (LA-ICP-MS) was designed for chemistry undergraduate students. While most analytical methods only provide information on the amount of the analyte, LA-ICP-MS allows extra information on the distribution of the element in the sample. Because it achieves…