The role of work and mechanical energy in classical relativity has been a subject of renewed interest in this publication. Here we present a problem that illustrates the relationship between impulse and kinetic energy for a rocket-powered object that can also change its gravitational potential energy. The same introductory physics principles lead…

For many students, introductory physics is an enormous hurdle to cross in their educational careers. Studies show that many students struggle with basic vector concepts and hold misconceptions of fundamental principles like Newton's laws, ideas essential to the understanding of higher-order physics concepts and for achieving success in engineering…

In the laboratory experiment described here, students synthesize silver nanostructures (AgNS) with different shapes and sizes to elucidate the shape- and size-dependent optical properties of nanostructured materials. Students also develop understanding of some thermodynamic and kinetic aspects of the synthesis process through this experiment. In…

Polish universities offer a number of chemical competitions for high school students. One of oldest is the one organized by the Faculty of Chemistry of the Silesian University of Technology. For 27 years now this annual event has been an important tool for promoting the Faculty of Chemistry and admitting new students. It offers an opportunity to…

When student projects require an analytical step that is robust and sufficiently selective, high performance thin layer chromatography (HPTLC) is a method to be considered. However, for student laboratories not equipped for HPTLC, sample application as a sharp narrow band is a hurdle. The low eluting power of water on reversed phase plates can be…

A six-laboratory session biofilm-focused biochemistry laboratory module is described. Through just six four-hour laboratory sessions over three weeks, students first master background knowledge and fundamental experimental techniques to explore questions involving bacterial biofilms at the interface of microbiology and biochemistry and then…

Service teaching, through which core courses or modules are provided by a department other than the one administering the degree, occurs in universities worldwide, but there have been many reports of student dissatisfaction with their service-taught courses. The experiences of service teachers have received little attention and may help to suggest…

For some time now, images in science have been an object of study in the history of science. The multiple roles that images play in scientific practice have been recognised and discussed. However, little attention has been given to science related images in educational contexts. The case of geology is all the more relevant because it is considered…

This technology report outlines the design and construction of a simple Arduino-based pH sensor using universal pH paper; it can be assembled for less than $40 and is ideal for use in laboratory classrooms teaching students with visual disabilities. The device is simple to construct and suitable for adoption in school chemistry laboratories…

Connecting the thermodynamic definition of entropy, dS = dQ/T (Clausius's equation), with the statistical definition, S = k[subscript B] ln [omega] (Boltzmann's equation), has been a persistent challenge in chemical education at the undergraduate level. Not meeting this challenge results in students taking away the meaning of entropy in a vague…

The first purpose of this study was to introduce a laboratory modelling activity focusing on teaching the concepts of radioactive elements/atoms, radioactive decay, and half-life. The second was to investigate pre-service chemistry teachers' understanding of these concepts. Fifteen pre-service chemistry teachers who had enrolled in a Physical…

Foundation Year children are often excited about learning to read. Some 5- to 6-year-olds with well-developed literacy skills begin to read chapter books. Like older children and adults, they cannot read the whole book in one sitting. The learning experience described in the article provides an example of how the properties of materials…

The purpose of this study was to investigate the effect of inquiry-based experiments on pre-service science teachers' science process skills. The study group consisted of 60 pre-service teachers in total, enrolled in the undergraduate program of Science Teacher Education, Faculty of Education at a state university. The study which used randomized…

The photoelectric effect is one of the key experiments taught during first- or second-year university and high school modern physics courses. It is usually the first experiment to introduce light quantization and the concept of photons as "packets of energy." Here, we want to point out a widespread mistake concerning the interpretation…

The purpose of the study was to reveal the effects of scientific argumentation-oriented teaching activities on the environmental attitudes and knowledge of seventh-grade Turkish students within the human and environment unit compared to the activities suggested by the ministry of education science and technology curriculum. This study employed a…