An exciting recent development in chemistry has been the ability to control nanoparticle crystal morphology or shape. Nanoparticles of different shapes present different crystal surfaces (or facets) with respect to the surrounding environment. Synthetic control over nanoparticle morphology has enabled the study of the influence of surface facets…

The learners' conceptual understanding has become one of the leading research areas conducted by educational researchers. Both students and current educators should actively work to improve their understanding of alternative conceptions and deepen their conceptual knowledge. One of the essential concepts in chemistry learning is colligative…

A Spreadsheet Excel application for chromatographic peak characterization is described in this article. Data are exported from HPLC specific program to an Excel file with macros to perform basic calculations as retention time, height, and area of the peaks. From these values, peak resolution, asymmetry, or theoretical plates are calculated and…

Gamification of learning in chemistry education is a growing field. Chemistry themed escape room activities, incorporating course learning objectives into puzzle solution, have become a popular tool allowing for students to apply course knowledge in novel settings. Escape room activities, like their public counterparts, provide subtle guidance to…

Reactions between metal carbonates from d[superscript 5] to d[superscript 10] systems and glutamic acid are used to obtain molecular metal complexes and metal-organic frameworks (MOFs). When the ligand is an amino acid, these MOFs belong to the BioMOF class (metal-organic frameworks for biological and medical applications). The metal carbonates of…

A convenient approach to obtain Lewis structures for compounds of the type YX[subscript n] involves first constructing a trial structure that satisfies the valence of the outer atoms (e.g.,1 bond for fluorine, 2 bonds for oxygen, and 3 bonds for nitrogen)and placing the molecular charge (if any) on the central atom. The second step involves…

Energy is a crosscutting concept in science, but college students often perceive a mismatch between how their biology and chemistry courses discuss the topic. The challenge of reconciling these disciplinary differences can promote faulty reasoning--for example, biology students often develop the incorrect idea that breaking bonds is exothermic and…

Water is one of the most common molecules in the universe. Water is polarized, but it has many states besides the normal tetrahedron depicted in standard biology texts. Water is also the most ubiquitous molecule on Earth, the universal solvent. It is the internal and external habitat of cells. Ecologically, water is contiguous with life and the…

Previous research has shown that students employ intuitive thinking when understanding scientific concepts. Three types of intuitive thinking--essentialist, teleological, and anthropic thinking--are used in biology learning and can lead to misconceptions. However, it is unknown how commonly these types of intuitive thinking, or cognitive…

Organic chemistry is challenging for novices as it involves a large quantity of organic reactions. Effective learning requires not only profound theoretical knowledge but also the ability to reason about causal mechanisms. This study investigated pre-service chemistry teachers' mechanistic reasoning and the implicit cognitive process. Participants…

Ion transport, involving the diffusion and migration of ions within the electrolyte, stands as a fundamental concept in electrochemistry and serves as the driving force for electrochemical reactions. Electric double layers are critical in the fields of electrochemical energy storage and chemical conversion, constituting a central focus of…

The study of basic chemical reactions can be challenging for teachers in training when addressed in a lecture-based and out of context manner, lacking real-world examples, practical applications, or connections to daily life. Primary Reactions Race is a board game designed to help students learn basic chemical reactions such as oxidation,…

This study investigated the impact of the knowledge revision components (KReC) framework on enhancing student conceptual understanding and eliminating misconceptions about matter and change in science lessons. The study used refutation texts and integrated them into the Online Advanced Organizer Concept Teaching Material (ONACOM). The research…

This study aimed to investigate the effects of the prediction-observation-explanation (POE) strategy using worksheets designed for the "living things and life" topic on conceptual understanding and science process skills (SPS) of students with mild intellectual disabilities (SMIDs). The sample consisted of 12 SMIDs (eight students for…

Background/purpose: This study aimed to identify the impact of teaching science based on John Zahorek's model on the acquisition of scientific concepts among seventh-grade female students. Materials/methods. It was based on the quasi-experimental method. The study participants, comprising 58 seventh-grade students, were intentionally selected from…