A definition of chemistry is presented. (BB)

The concepts of the active organism and the reactive organism are discussed in terms of their origin and consequences. (MS)

Research conducted at Many Farms High School showed that achievement has been somewhat enhanced when the number of ethno-science exemplars (actual examples of materials and topics of Navajo culture, categorized as concrete, representative or symbolic and further described relative to the sense perceptions) is increased. (Author)

Investigates a museum exhibition design assumption that visitors develop conceptual understanding of a science topic after utilizing a cluster of conceptually related exhibits which lack explicit concept labeling. Also investigated whether visitor concept development could be enhanced through the addition of explicit labeling of the intended…

Describes an activity that involves student teams designing and producing three-to-five-minute instructional videos that define a scientific concept and illustrate its application to their personal experiences. (JRH)

Describes the concepts behind the working of the Seiko "Kinetic" watch that uses ultracapacitors to store energy. (JRH)

Uses the analogy of water flow to introduce concepts in basic electricity. Presents a demonstration that uses this analogy to help students grasp the relationship between current, voltage, and resistance. (JRH)

Discusses Newton's apparent oversight of the role of energy considerations in collisions between two spherical bodies related to the third corollary of his "Laws of Motion." Investigates several theories that provide solutions to the mysterious oversight. (LZ)

Presents three examples that show how students can use traditional physics principles or laws for the purpose of understanding chemistry better. Examples include Coulomb's Law and melting points, the Faraday Constant, and the Rydberg Constant. Presents a list of some other traditional topics in a chemistry course that could be enhanced by the…

Discusses the properties and classification of liquid crystals. Presents a simple experiment that illustrates the structure of liquid crystals and the differences between the various phases liquid crystals can assume. (JRH)

Describes the use of a dramatic and enjoyable demonstration as the focus of a class discussion in electrochemistry. Advantages include building rapport with students, increasing the enjoyment of the learning experience for both instructor and student, and giving students a substantive basis for the lecture demonstration. (JRH)

Presents a course, Physics and Time, that centers on a few topics that students with limited mathematics training and no previous science can explore in depth. Discusses concepts of time, measuring time, arrows of time, and linearity versus nonlinearity. (JRH)