Describes four hands-on and inexpensive activities science teachers can employ to demonstrate, encourage, develop, and teach students the physical properties of light, heat, and sound waves, utilizing a coffee can. Details the basic experiments and provides additional information for tailoring the activities to elementary through middle…

Explains how controlling student access to data can be used as a strategy enabling students to take the role of a research geologist. Students develop models based on limited data and conduct field tests by comparing their predictions with the additional data. (DDR)

Summarizes the report on undergraduate education in biology published by the National Science Foundation. Discusses the problems and recommended solutions for each of three areas: laboratories and course development; enhancing the quality of teaching; and recruitment and retention of students. (YP)

Points out that research is an inefficient endeavor as it relates to time, but the rewards can be gratifying and of value. Reports on a compilation of faculty and administration observations, alumni and student surveys, and some readings on the topic. (RT)

Introduces an interdisciplinary activity using a cola drink. Describes the lesson plan, including objectives, procedures, evaluation, projects, and conclusions. Provides two laboratory sheets containing problem, hypothesis, materials, procedure, observations, and conclusions, vocabulary table, and data table. (YP)

Describes two experiments designed to provide concepts on the difference between heat and temperature and also bond energy. Investigates both a neutralization experiment and a ligation experiment. Notes inexpensive chemicals are used along with simple equipment. Discusses the sharing of lab results for a single class value. (MVL)

Describes an undergraduate biochemistry laboratory experiment on enzyme kinetics using the D-amino acid oxidase system and an ammonia electrode. Preparation of an ammonia standard curve, a sample preparation, and inhibition studies are discussed. (YP)

Reviews research on the purpose and effectiveness of laboratory activities. Discusses epistemology, problem solving, cooperative learning, student involvement, assessment, and teachers as researchers. (YP)

Describes apparatus for Doppler demonstrations. Provides several pictures of the apparatus and ways it could be used. (YP)

Discusses the equipment and techniques for taking photographs using a sound-actuated trigger. Describes a method using two flash units, two sound triggers, and a high-frequency clock to measure speeds. Provides several high-speed photographs. Lists 11 references. (YP)

Discusses a high school advanced placement physics course cooperating with neighboring college. Describes the background, titles of experiments, report format, and discussion. (YP)

Hampshire College needed to create opportunities for advanced undergraduates to have extensive laboratory or field experience in experimental sciences. A general biochemistry course, taught almost entirely in the laboratory, is described. The focus of the course is enzymes as catalysts and as proteins. (MLW)

Shows that the mutual repulsion that enables a superconductor to levitate a magnet and a magnet to levitate a superconductor can be combined into a single demonstration. Uses an overhead projector, two pellets of "1-2-3" superconductor, Nd-Fe-B magnets, liquid nitrogen, and paraffin. Offers superconductor preparation, hazards, and disposal…

Presents the construction aspects of a simple but reliable colorimeter made from locally available components. Notes the absorption range to be 400-750-nm. Lists seven experiments done on the instrument. (MVL)

Discusses the flotation method for the determination of the density of solids. Provides the stepwise experimental procedure with typical data tables and graphs. (YP)