As introductory chemistry courses expose students to many distinctive properties of matter, it is helpful to systematically evaluate and relate different measures such as mass, moles, and molarity, or specific heat capacity and heat capacity. Intensive and extensive designations help distinguish intrinsic and component properties of a system and…

In Vietnam, nuclear physics is a fundamental part of the national curriculum for physics. However, due to a lack of experimental apparatus (detectors, radioactive sources, etc) at most of the schools, the majority of students do not have opportunities to experience the phenomena behind the concepts. Moreover, safety is another major concern when…

Electroscopes have been widely used in physics education for several reasons, such as their simplicity, sensitivity and visual appeal, showing macroscopic phenomena related to the microscopic world. Although they are capable of highly accurate measurements, the procedures involved in these measurements encounter some obstacles when performed with…

Writing and genre scholarship has become increasingly attuned to how various nontextual features of written genres contribute to the kinds of social actions that the genres perform and to the activities that they mediate. Even though scholars have proposed different ways to account for nontextual features of genres, such attempts often remain…

Radon is a dangerous radioactive gas that is always present in the environment. It is important that students and society in general are aware of radon as a health hazard. This study describes a simple experiment to measure the variations of radon gas concentration outdoors. We compared the concentration of radon gas in the environment in dry and…

Understanding the concept of electromagnetic radiation (EMR) and its interaction with matter (absorption, reflection, and transmission) can be difficult for students in seventh and eighth grade physical science classes. This inquiry-based activity (IBA) is aimed at improving their understanding of these concepts by exploring the interaction of EMR…

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…

Communicating the flow of genetic information (DNA ? RNA ? protein) is not only a basis of biochemical education, but also is the essential foundation for understanding the complexity of biological processes. The described laboratory exercise demonstrates that the information encoded into different DNA sequences can be transformed into various…

Energy consumption in the world is increasing more and more due to the huge energy request coming from emerging countries such as China, India, etc. To face the challenge of sustainability, a solution may be the use of solar energy, since it is the most abundant renewable energy source on Earth. The electromagnetic energy coming from the Sun can…

Fluorescence spectra excited by laser pointers have been the subject of several papers in "TPT". These papers all describe a fluorescence phenomenon in which the reflected laser light undergoes a change in color: this color change results from the combination of some partially reflected laser light and additional colors generated by…

The aim of this study is to develop a scale that will determine whether there is a significant difference in the cognitive, affective and behavioral attitudes of healthcare staff towards radiation and its effects on the variables of the profession, gender, service year, institution and department they work. Using the radiation-emitting devices…

We present ideas about concepts underlying climate change, held by students in years 9 and 10. Misconceptions about climate change are common among students, and may be due to misconceptions about underlying concepts. To investigate this, we developed the Climate Change Concept Inventory (CCCI), and trialed it with 229 students; corroborating…

This research aimed to investigate the misconceptions on nuclear physics topics. Misconceptions are defined as ideas whose meaning departs from what is commonly accepted by scientific consensus. A total of 34 high school students of the Federal Institute of Education, Science and Technology of Sao Paulo (IFSP), Brazil, answered a questionnaire on…

This study aimed to investigate Turkish pre-service teachers' awareness about electromagnetic radiation risks, which stem from diagnostic imaging at the hospitals and cell phone use in daily life. The study was based on survey research. A total of 138 education faculty students from the fields of Science Teaching [ST], Classroom Teaching [CT], and…

This study aimed at investigating the effectiveness of using Radioactivity Remote Laboratory Activities (RRLAs) in enhancing Form Four (equivalent to Grade 10) students' understanding of radioactivity and motivation to learn science. For this purpose, in this study, a repeated measures one-way ANOVA design was utilized in which 54 Form Four…