The activity proposed in this study aims to investigate the equilibrium between the liquid and vapor phases in a mixture of water and acetic acid, both of which are volatile substances. High school students can easily determine the composition of the liquid phase and its corresponding vapor phase at equilibrium using a simple and conceptually…

The authors describe the benefits of elementary school gardening experiences and offer suggestions on how to nurture positive environmental attitudes among children through garden-based learning activities.

Recent solar eclipses provide relevant real-world contexts for learning about the scientific phenomena of the lunar phases. News coverage of the phenomenon may have raised questions such as, "Why does the Moon look different at different times, and sometimes as if it is not there?," and "What patterns can be found in the lunar…

Climate change caused predominately by carbon dioxide (CO2) from fossil fuel use is a critical issue for our future. It is incumbent on science educators to learn about it and teach it in ways that illustrate the power of science to understand climatic changes and model past, present, and possible climate futures. It is equally important for…

An approach to online laboratory exercises for analytical chemistry students with demonstrated practical exercises through the use of remote-controlled gas chromatography (GC) instrumentation is discussed. The approach allows for a practical-based learning activity to be carried out by students who are unable to attend in-person laboratory…

The process of diffusion is intimately related to random molecular displacement and is central to many problems in chemistry. Here, we provide an intuitive derivation of the diffusion equation based on the analysis of the random trajectories of particles generated and plotted by simple MATLAB and Python scripts. The codes are very simple and…

In this in-class activity, organic chemistry undergraduates try to place an assortment of molecules in chronological order from oldest to most recently synthesized. In the students' first attempt, they use their knowledge of reactions and synthesis to analyze the organic compounds for their structural complexity. Before a second attempt, the names…

Theoretical and practical foundations of basic electrochemical concepts of heterogeneous charge transfer reactions that underline electrochemical processes are presented for their detailed study by undergraduate and postgraduate students. Several simple methods for calculating key variables, such as the half-wave potential, limiting current, and…

The basic knowledge of chemical formula writing is fundamental for chemistry students, yet many still struggle to learn it. To provide a more interactive and engaging approach that facilitates and reinforces student understanding of chemical formulas and stoichiometry of chemical reactions, we have designed a chemical jigsaw puzzle. Only eight…

This laboratory experiment offers a research-style experience designed for senior undergraduate students in a multidisciplinary laboratory setting. The experiment focuses on the synthesis, characterization, and application of a cation-exchange membrane made of COF-SO[subscript 3]Na/PAN for ion separation. By participating in this practical…

As a result of the COVID-19 pandemic, it is crucial for an introductory course in biochemistry to move from in-person instruction to total remote learning. There are four transferable skills in the course: problem-solving, laboratory psychomotor skills, data analysis and interpretation skills, and presentation skills. Since all lab buildings were…

Chromatography is the most common analytical technique able to identify and quantify a wide gamut of substances in food, environmental, forensic, pharmaceutical, and many other kinds of real samples. We propose a simple drama science activity: students embody different compounds wearing emblems of different colors and dramatize their…

The central pedagogical principle on which the "Next Generation Science Standards" (NGSS) are built is that of three-dimensional learning. This principle posits that it is through meaningful integration of the disciplinary core ideas (DCIs), science and engineering practices (SEPs), and crosscutting concepts (CCCs) that students will…

Atomic orbitals represent an essential construct used to develop chemical bonding models, upon which other more advanced chemistry topics are built. In this article, we share a series of active-learning activities and a gamified approach to develop students' representational competence about atomic orbitals and to engage students in learning the…

In this kindergarten lesson about pushes and pulls, the authors used the SHARE strategy to embed effective questions throughout each phase of the 5E learning cycle (Engage, Explore, Explain, Evaluate, Elaborate). The thoughtfully worded and open-ended questions shared in this article can help students generate ideas and focus their thinking…