Identifies and describes the differences in the problem-solving methods used by faculty teaching introductory chemistry and students enrolled in an introductory chemistry course. Results indicate that students correctly solve algorithmic-mode problems more frequently. Contains 33 references. (DDR)

Focuses on the development of graphing skills through a data collection activity that answers the question of the relationship between rubber band width and flight distance. Includes definitions of terms and instructions for helping students construct line and bar graphs. (DDR)

Recommends the use of seed beetles for studying animal behavior and provides suggestions for practical and project assignments. Sources for obtaining the beetles and a list of the equipment needed for their study and maintenance are provided. Answers to common concerns are addressed. (DDR)

Presents an alternative approach to teaching laboratory chemistry that considers issues such as safety, waste disposal, and cost. Focuses on the micro-scale approach and discusses a number of positive benefits that can be gained from adopting this approach. (DDR)

Summarizes the benefits of using hydroponics in school for investigational work. Lists requirements and includes advice on suitable plant choices. Outlines the various growing systems and growing media and provides suggestions for science investigations using hydroponics. (DDR)

Describes a study that investigates both the use and usefulness of laboratory dissections and computer-based dissections in a tertiary, first-year human biology course. Explores attitudes toward dissection. (DDR)

Described is an activity where students determine the effect of different toothpastes on teeth. Students used observational data and pH changes to determine any changes in the teeth. Included are a list of materials, procedures, and results. (KR)

Presented is an activity that investigates the effect of sugar on teeth using cola, sugar solution, and water. Included are the materials, procedures, resources, and alternative lessons. (KR)

Experiments designed to help undergraduate students gain experience operating instruments and interpreting gas chromatography and mass spectrometry data are presented. Experimental reagents, procedures, analysis, and probable results are discussed. (CW)

Discussed are the procedures and results involved in this activity. Student results in undergraduate laboratories indicate high quality results and relative ease of the analysis. (CW)

Described is a demonstration science laboratory at the University of Florida. Discussed is laboratory design, including instructional space, lab stations, sink areas, safety areas, and a storage and distribution area. The impact of this type of design is cited. Diagrams and photographs are included. (CW)

Described is a technique for fiber identification for use by K-6 students. Follow-up activities for elementary and college students are suggested. (CW)

Findings from a survey of 20 liberal arts colleges which did not have graduate programs in chemistry are presented. Discussed are regulations, actions taken and costs of academic laboratories regarding the disposal of hazardous waste. (CW)

Three demonstrations (a mechanical model of chemical equilibrium, a demonstration of Raoult's Law, and a demonstration of permanganate reduction) are presented. Materials and procedures are detailed. (CW)

Procedures for duplicating fossil raindrop impressions are presented. The use of modern and fossil imprints as the basis for qualitative and quantitative lessons in the interpretation of ancient sedimentary features is discussed. (CW)