In order to describe the velocity of two bodies after they collide, Newton developed a phenomenological equation known as 'Newton's experimental law' (NEL). In this way, he was able to practically bypass the complication involving the details of the force that occurs during the collision of the two bodies. Today, we use NEL together with momentum…

A hula hoop rotating around a person's waist is an example of circular motion where the centripetal force on the hoop is directed towards the centre of the circle rather than the centre of the hoop. The friction force on the hoop is relatively small by comparison since the hoop rolls around the waist. A slight complication is that the hoop rotates…

This article addresses the following question: Can speculation be used in social science research or should this not be an option? The secondary literature on speculation, which is minimal, is presented and discussed. It is noted that natural scientists often differentiate between a scientific form of speculation and the old metaphysical form of…

The performance of any economy is based on scientific knowledge and technological innovation. Consequently, a highly motivated workforce with skills in science and engineering is key to any prosperous economy. Science education has a critical role in providing scientific literacy to students, as well as in training young people to choose careers…

Pressure gradients serve as the key driving force for the bulk flow of fluids in biology (e.g., blood, air, phloem sap). However, students often struggle to understand the mechanism that causes these fluids to flow. To investigate student reasoning about bulk flow, we collected students' written responses to assessment items and interviewed…

The interrelationship of science and engineering and the recent inclusion of engineering in K-12 science standards have promoted the incorporation of engineering design in science classrooms. However, empirical studies on the impacts of engineering design on science learning show mixed findings and indicate that factors such as the complexity of…

The aim of this research is to take a fresh look at the physical science concepts that Year 3 students struggle with. In this work, the responses of over 8,000 middle-primary-aged students to a range of physics, space science and chemistry questions were evaluated. The questions covered a number of topics ranging from selecting and using simple…

The More Than Human (MTH; Bang and Marin 2015) world is often considered passive and neutral, not implicated in meaning-making in science classrooms. Through this framing, learning spaces are considered the backdrop upon which learning occurs, where the goal of science teaching is to explain why or predict how science phenomena-assumed as static…

This study aims to determine misconceptions about interphase, a basic phase in the cell cycle and to address those misconceptions. Meristem cells in plants, stem cells in animals, spermatogonia and oogonia cells, and some cells with partial regeneration ability do not lose dividing ability. However, normal tissue cells other than these are in the…

Meaningful learning for conceptual change in science education should aim to help students change their existing misconceptions to develop an accurate understanding of scientific concepts. Although collaborative argumentation is assumed to support such processes, its value for conceptual change is unclear. Moreover, the roles of argumentative…

An ability to engage in system thinking is necessary to understand complex problems. While many pre-college students use system modeling tools, there is limited evidence of student reasoning about causal relationships that interact in diverging and converging chains, and how these affect system behavior. A chemistry unit on gas phenomena was…

An investigation was conducted into the common misconceptions in chemical equilibria, adopted by a sample of UK secondary school students. These included the characteristics of a dynamic equilibrium, the nature of the reactants and products at equilibrium, as well as the effect of conditions and catalyst on equilibrium. Suggestions for improved…

Recently, science, technology, engineering and mathematics (STEM) applications have become more demanding, promoting students' interest in science from an early age. Science class in primary school needs more attention to attract students' interest. This study aims to develop an inquiry- based module with scientific equipment for the primary…

Kids are drawn to dolls and dump trucks, and crashing the two together might just be a child's favorite pastime. Who knew such a simple pleasure could serve as an accessible, compelling phenomenon for instigating investigations of force and motion. With a few inexpensive materials straight out of the toy box (literally, a doll, a dump truck, a…

Despite being a fundamental concept in biology, evolution continues to be one of the most challenging topics to teach in science education. Ideas of evolution emphasising anatomical or behavioural features of individuals, as opposed to the interplay between genetics and the environment, are reinforced through language and culture, making them…