Sought to determine first-year physics students' approaches to learning, the intellectual demands of their exams (using Bloom's taxonomy), and correlations between the approach to learning, assessment demands, and student performance. Found that most students approached physics with the intention of memorizing formulae rather than understanding…

Described is the basic biology involved in mapping chromosomes as presented at a symposium at a recent meeting of the American Chemical Association which focused on the Human Genome Initiative. Different types of gene maps and techniques used to produce gene maps are discussed. (CW)

The story of researcher Joseph V. Smith's solution to the chemical structure of a zeolite known as boggsite is presented. The value of the solution and the use of boggsite are discussed. (CW)

Described is the need to incorporate the concepts and applications of advanced composite materials into existing chemical engineering programs. Discussed are the justification for, and implementation of topics including transport phenomena, kinetics and reactor design, unit operations, and product and process design. (CW)

Described is an experiment in which factor analysis is used to identify and quantify the components of mixtures containing up to four species. Discussed are the theory, procedures, and sample results for this activity. (CW)

Discussed is the performance of college students on the task of solving chemistry problems involving Lewis structures. Difficulty of the task and of individual problems is described. A taxonomy of skills associated with Lewis structures is presented. (CW)

Described are demonstrations designed to reveal the important "nonsolvent" properties of water through its interaction with a toy called "Magic Sand" and other synthetic silica derivatives, especially those bonded with organic moities. The procedures for seven demonstrations along with a discussion of the effects are presented. (CW)

Presented are laboratory methods which allow the demonstration and determination of the diffusion coefficients of compounds ranging in size from water to small proteins. Included are the procedures involving the use of a spectrometer, UV cell, triterated agar, and oxygen diffusion. Results including quantification are described. (CW)

Discussed are the importance and needs of emerging applications of photonics technology. Stressed is the need for people skilled in its use. A bachelors program in photonics is described. (CW)

Discusses recent approach at undergraduate engineering curriculum emphasizing bringing some engineering courses to freshman and sophomore levels. Summarizes several examples of the approach at various institutions throughout the country. (YP)

Listed are errors students make by accepting misconceptions about pressure and precautions teachers might take to avoid fostering those misconceptions. Misconceptions discussed include pressure as a measure of energy per unit volume, fluid flow only from high to low pressure, and the lack of pressures lower than a vacuum. (CW)

Described are animals that can filter their food out of the water. Various structures modified to strain plankton and small animals from water are detailed. The adaptive significance of these structures is discussed. (CW)

Described is the discovery that oscillations of electric potential at 40 hertz hold the key to how the brain assembles sense impressions into a single object. Potential implications from this research are discussed. (CW)

Described is the need for the development of innovative continuous programs that reach minority students at an early age. The importance of mentors for minority students is stressed at the undergraduate and graduate levels. Reasons for the underrepresentation of minorities in the sciences and engineering are discussed. (KR)

Presented are the arguments of two different points of view on the mass extinction of the dinosaurs. Evidence of extraterrestrial impact theory and massive volcanic eruption theory are discussed. (CW)