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…

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…

The Wilson cloud chamber is an apparatus used for detecting and observing the trails of alpha/beta rays or even cosmic rays in saturated gas conditions. The principle of this device is based upon the powerful ionization of the aforementioned rays within the medium. This article will provide instruction for creating a classic version of the cloud…

The statics of fluids may seem simple at first but often poses problems for students when it comes to applying it to concrete cases. Despite its relatively simple laws, some subtleties, mainly related to the elastic characteristics of a fluid, must be noted. This elasticity allows the pressure exerted in a part of the fluid to propagate in its…

The conceptual gambit of this article is to propose that the notion of anti-entropy should be complemented by that of exergy investment or destruction, a term first proposed by Zoran Rant in 1956. It argues that one of Bernard Stiegler's most important interventions into deconstruction is the thermodynamic reformulation of Derridean…

It is well known that the needle of a compass in a magnetic field deflects, and that a compass near a conductive wire carrying a stable electric current deflects its needle. The only explanation of this observation is that the current-carrying wire creates a magnetic field around it. The strength of the magnetic field at any point near the wire…

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…