This work presents a modernized lab module for nitrite analysis using a novel probe, AAC (4-(2-aminophenyl)-7-(diethylamino)-2H-chromen-2-one, C[subscript 19]H[subscript 20]N[subscript 2]O[subscript 2]), offering a safer and more sensitive alternative derived from recent research. The 12-h module follows a three-stage structure (Basic…

One strategy for developing science literacy and scientific literacy in young children is through published trade books. To better understand how science literacy and scientific literacy may be represented in elementary classrooms, we investigated children's books that explore science concepts. Specifically, we examined high-quality science trade…

Education in organic chemistry is highly reliant on molecular representations. Students abstract information from representations to make sense of submicroscopic interactions. This study investigates relationships between differing representations: bond-line structures, ball-and-stick, or electrostatic potential maps (EPMs), and predicting partial…

University research labs focusing on education, psychology, and cognitive development have been collaborating with museums more and more over the past decade. Nevertheless, cognitive science labs that primarily engage in basic as opposed to applied research may find it difficult to entice museums to collaborate, and existing collaborations may…

As a result of human beings' activities to dominate nature and transform it for their own benefit as they continue to advance in science and technology, environmental problems such as climate change have become the biggest threat faced by the biosphere in the current century. One of the biggest problems of humanity today is the scarcity of water…

Carefully chosen picturebooks offer a developmentally appropriate medium for helping children understand even the most complex challenges. However, it may be difficult for teachers to find high-quality children's books for explaining multifaceted topics such as climate change. This study explores the contents of a set of picturebooks about climate…

Relying on multiple documents to answer questions is becoming common for both academic and personal inquiry tasks. These tasks often require students to explain phenomena by taking various causal factors that are mentioned separately in different documents and integrating them into a coherent multi-causal explanation of some phenomena. However,…

This study aimed to identify science teacher candidates' mental structures about the concept of the atom. This study included 120 science teacher candidates who were chosen using the convenience sampling method. This research is a phenomenological study. The data on students' mental models of the atom was collected using a metaphor form and an…

Although researchers have extensively studied student conceptions of radioactivity, the conceptions held by preservice teachers on this subject are largely absent from the literature. We conducted a qualitative content analysis of problem-centered interviews with preservice teachers (N=13) to establish which conceptions are held by preservice…

Recognizing the growing value of game-based learning in medical education, this study aims to evaluate the effectiveness of the innovation, "Aquilibria: The Battle to Balance," a creative narrative card and board game to help improve learners' understanding and application of the concepts of acid-base balance. In this mixed-method study,…

The urea cycle disorder drug glycerol phenylbutyrate (Ravicti) is presently one of the most expensive medications in the United States, with annual costs estimated at $800,000 as of 2023. An expedient synthesis of this orphan drug was successfully adapted for the undergraduate organic chemistry laboratory. Activation of 4-phenylbutyric acid with…

This study investigates alternative conceptions of chemistry concepts among Faculty of Science students at Palestine Technical University-Kadoorie. Students are found to have incorrect views about fundamental chemistry concepts. The study aims to identify these misconceptions, understand their origins, and their impact on students' comprehension.…

We argue that teleological thinking plays a central role in biology and, more specifically, in theory of natural selection, and, therefore, the didactic goal cannot be its unnuanced elimination. In this sense, we will suggest that students' teleological views can be used as the starting point for the construction of knowledge in this area of…

A culinary exploration of the role of CO[subscript 2] in leavening is described. This demonstration substitutes dry ice for chemical leaveners in order to achieve the same pancake fluffiness. Under the universal framework of food and cooking, we developed this activity to bring aspects of phase transitions and chemical transformations to a broad…

The mercury beating heart is a classic demonstration to introduce redox reactions in the classroom. Here we report a new, safer demonstration: the Galinstan beating heart. Galinstan is a commercially available eutectic alloy composed of gallium (68.5%), indium (21.5%), and tin (10%) that has low toxicity. When an iron nail touches the Galinstan…