In this article, we discuss the replication of a forgotten chemical instrument in the context of undergraduate chemistry education. Together with students, we have attempted to replicate an eighteenth century "eudiometrical" procedure. Eudiometry was the practice of measuring the "goodness" of the air by looking at the volume…

Concepts related to the nature of science (NOS) have been considered an important part of scientific literacy as reflected in its inclusion in curriculum documents. A significant amount of science education research has focused on improving learners' understanding of NOS. One approach that has often been advocated is an "explicit and…

We propose explicit and implicit approaches for the teaching of acid-base chemistry based on research into the history and nature of science (NoS). To support these instructional proposals, we identify four rationales for students to understand acid-base processes: daily life, socio-scientific, curriculum, and history of science. The extensive…

Many of the current issues facing humans are geologic in nature. Whether the issue is mitigating the impact of geologic hazards, reducing air and water pollution, managing the energy of mineral resources, or minimizing the impact of anthropogenic global climate change, we require a geosciences-literate population. This is crucial to developing…

With funding from the United States National Science Foundation, 30 historical short stories designed to teach science content and draw students' attention to the nature of science (NOS) have been created for post-secondary introductory astronomy, biology, chemistry, geology, and physics courses. The project rationale, story development and…

Necessary and sufficient criteria for reaction spontaneity in a given direction and for spontaneity of finite transformations in single-reaction, closed systems are developed. The criteria are general in that they hold for reactions conducted under either conditions of constant T and p or constant T and V. These results are illustrated using a…

This study investigated the influence of a short explicit-reflective Nature of Science Course (NOSC) on access students' ideas about the Nature of Science (NOS). Eighty five students registered for a Bachelor of Science degree at the University of the Western Cape in South Africa went through a seven week course that deliberately sought to develop…

This study provides qualitative analysis of data that answers the following research question: how do college science faculty teach science and NOS and incorporate aspects of NOS and the history of science into their undergraduate courses? The study concentrates on four cases and more specifically on three introductory science classes and on four…

Reviews some major concepts in quantum mechanics and advocates less stress on quantum mechanics and thermodynamics in introductory chemistry. Supports diversity in chemical education. (PR)

History, design, and evaluations are presented for electrostatic motors. Illustrations. Bibliography. (DS)

Summarizes the historical development of lasers, involving basic concepts in physics, applied technology, advanced experimental techniques, and human interactions. Indicates that the potential for invention of the laser had been with us at least 30 years before the event actually occurred. (CC)

Describes the discoveries by Hertz historically, such as photoelectric effect, radio waves, their impact on modern physics and some applications. Presents several diagrams and two chronological tables. (YP)

Describes the use of original research reports as a basis for classroom discussion. Concepts of the nature of evidence and inference can be treated in depth by means of classroom analysis of evidence. (Author/GS)

Information related to the history of optics with emphasis on the classical and medieval periods is presented. Notes are included on experiments dealing with refraction at a plane interface between two media; refraction by transparent spheres; light, color, and reflection by transparent spheres. (Author/SA)