According to the principle of equivalence, it is impossible to distinguish between gravity and inertial forces that a noninertial observer experiences in his own frame of reference. For example, let's consider an elevator in space that is being accelerated in one direction. An observer inside it would feel as if there was gravity force pulling him…

The aim of the research is to create the classification for shock wave triple configurations and their existence regions of various types: type 1, type 2, type 3. Analytical solutions for limit Mach numbers and passing shock intensity that define existence region of every type of triple configuration have been acquired. The ratios that conjugate…

This column contains exercises to challenge content knowledge. This month's issue discusses ways to remove CO[subscript 2] from the atmosphere.

We briefly discuss memory types and three modern principles of neuroscience: 1) Protein growth at the synapse, 2) the three-brain theory, and 3) the interplay of the hippocampus, the neocortex, and the prefrontal cortex. To illustrate the potential of this perspective, four applications of these principles are provided.

We designed the Integrated Sciences First-Year Program (ISFP) to introduce students to the nature and process of science early in their academic career, help them develop skills and competencies, and create an intellectual community of learners to foster belonging within science. Using their inherent curiosity, we designed active learning…

In previous published articles, formulae-based mnemonics by counting the total number of s bonds with a lone pair of electrons (LP), a localized negative charge (LNC), or a localized lone pair of electrons (LLP) and subtracting one (01) from this total value (TSLP, TSLNC, or TSLLP) to predict the power of the hybridization state of simple…

The mole concept is one of the fundamental concepts in chemistry. However, a number of studies carried out in various countries have shown that teachers and learners face many difficulties in teaching and learning the concept. One of the underlying sources of teaching and learning difficulties of the mole concept identified in literature is the…

With limited time available in the classroom, e-learning tools can supplement in-class learning by providing opportunities for students to study and learn outside of class. Such tools can be especially helpful for students who lack adequate prior preparation. However, one critical issue is ensuring that students, especially those in need of…

The study aimed to investigate the effect of project supervision training offered to Biology teachers on their views of the nature of scientific inquiry. We employed an action research design, as one of the qualitative research methods in this study. The participants were composed of 39 Biology teachers who had attended training on project…

The purpose of this study is to develop a flow map for history of science instruction on nature of science (NOS) using a cognitive strategy. This is done to enhance overall scientific literacy through specificity and reflectiveness, and to examine pre-service elementary teachers' understanding of the NOS using NOS flow maps concerning Galileo's…

Recent GCSE and IGCSE specifications include reference to both permanent and induced magnetism, giving the opportunity for novel classroom demonstrations based on ferromagnetism and paramagnetism, and the transition between these phases. Ferromagnetic materials lose their magnetism if raised above their Curie Temperature, a specific temperature…

There are many physics experiments with long time scales such that they are usually neither shown in the physics class room nor in student labs. However, they can be easily recorded with time-lapse cameras and the respective time-lapse videos allow qualitative and/or quantitative analysis of the underlying physics. Here, we present some examples…

Candy, an everyday treat, is a convenient theme for teaching chemistry. Making candy incorporates solution concentration, colligative properties, and phase transformations while flavoring and color reflect synthesis or extraction. In this article, a nonscience major laboratory course on candy chemistry is presented. The course combines laboratory…

This paper presents findings from a quasi-experimental study evaluating future teachers' attitudes and beliefs in response to a cross-curricular university course on evolution and creation bridging biological and Christian theological perspectives. Based on previous findings, we hypothesized that a course providing learning opportunities for…

The issue of Indigenous engagement, participation and success in the sciences is a concern both in Australia and in Canada. The authors of this paper have taught Indigenous students in tertiary enabling programs, undergraduate science and science education. Their experiences bridging Indigenous and Western cultures in science and science education…