Archimedes' principle states the buoyant force is equal to the weight of fluid displaced by the object. In this work, we will develop this principle using energy considerations.

A well-known conclusion from elementary ballistic trajectory analysis is that the horizontal range of a projectile is maximized for a launch angle of 45°. The derivation of this result assumes that the launch speed is the same for all possible launch angles, but this neglects the fact that the work done against gravity by the launching mechanism…

Individuals are increasingly relying on social media as their primary source of scientific information. Science education needs to adapt. Nature of science (NOS) education is already widely accepted as essential to scientific literacy and to an informed public. We argue that NOS now needs to also include the NOS communication: its mediation,…

One agenda of science instruction in primary schools is to develop learners' scientific reasoning abilities and to equip them with the necessary twenty-first-century skills. Few studies have been conducted to develop measurement tools that aspire to assess primary school learners' scientific reasoning. Most of these studies lack a theoretical…

The purpose of the present study was to reveal the effectiveness of the Nature of Science (NOS) embedded in Argument-Driven Inquiry (ADI) instructional method on pre-service science teachers' (PSTs) content knowledge and self-efficacy in evolution theory. The study was a mixed-method study in which the qualitative data collection and analysis was…

This article presents the results of a piece of research that analyzed the views on the nature of science (NOS) among student teachers enrolled in programs of Primary Education at two public universities in Spain. Previous studies have reported that science teachers maintain 'eclectic' epistemological perspectives on science; in this article, we…

This paper explores the influence of Science Teaching Orientations (STOs) on Teacher Professional Knowledge (TPK) domains of five in-service Malawian secondary school science teachers. The study was grounded within Friedrichsten et al.'s (2011) definition of STOs and Gess-Newsome's (2015) conceptualization of TPK. We gathered data using…

The relationship between science and society has, for many years, been the subject of debate in different fields, and various proposals have been made regarding the kind of science education that citizens require. The present study considers an understanding of the nature of science (NOS) to be one of the key competences that citizens should…

The paper presents a study about pre-service science teachers' perceptions of the Nature of Science (NOS). Although there is a substantial amount of research on NOS in science teacher education, international comparative accounts particularly of in-depth qualitative data emerging from group discussions are fairly minimal. The primary aim of the…

We report on an investigation of student thinking about steady-state pipe flow of an incompressible fluid. About 250 undergraduate engineering students were given a test consisting of two hydrodynamics questions, combining multiple-choice format with subsequent open-ended explanations. There is substantial evidence that students have difficulty…

In the transition from classical to modern physics, the idea of taking some certain quantities as distinct or bounded values and keeping the rest continuous has proved useful in dealing with many problems. In this paper we assume an upper bound on the velocity of classical particles and indicate that applying this assumption to electromagnetism…

Although learning about Nature of Science (NOS) promotes a variety of important outcomes, teachers often lack suitable activities for younger students to effectively address NOS. In this article I elaborate on an NOS activity developed for a teacher professionalisation workshop. The activity is suited for younger students as well, where clear…

The purpose of the study was to investigate the relationship between high school students' understandings of aspects about nature of science (NOS) and their argumentation skills, particularly whether informed conceptions of NOS contribute to better argumentation skills. Participants, a total of 125 Grade 10 students, responded to an open-ended…

The goal of this study was to examine the way preservice science teachers depict and develop their understanding of nature of science (NOS), from the perspective of the family resemblance approach (FRA). FRA defines NOS as a Cognitive-Epistemic and Social-Institutional system. Appling the dual-analytic approach via reflective drawing analysis, we…

Students were tasked with the creation of videos of ordinary reactions to promote significant learning of complex concepts underlying chemical transformations. Interactive infographics were used to deliver instructions. Afterward, students planned the experimental setup for the reaction execution and video recording using their mobile phones. The…