Describes: (1) thermometric titrations; (2) EM-5 equipment (consisting of a thermal sensor, calorimeter, and input-buffered amplifier); (3) acid-base titrations; (4) precipitation titrations; and (5) redox titrations. Detailed procedures are included. (JN)

Describes a simple form of metal detector, discussing the principles of signal generation, and the detection and discrimination of induced eddy current signals from the located objects. Includes a rough schematic of the detector. (JM)

Presents ideas for the prospective writer such as recording ideas, keeping a diary, important library resources, analyzing periodicals, writing query letters, writing the article, submitting, acceptance/rejection, and revision. Provides a list of 16 science, mathematics, and related publications with editors' names and addresses. (JM)

Examines major goals, pilot projects, and other activities of the International Environmental Education Program. Includes a series of suggestions for supplementing the effort as well as a comprehensive list of publications for readers interested in pursuing any individual aspects of the program. (Author/JM)

Describes the fine-beam cathode-ray tube, explaining observed phenomena from a visual, qualitative viewpoint. Discusses the reason for the fineness of the beam and provides the theoretical basis for the observed circular shape of the beam when the Helmholtz field is applied. (JM)

Discusses the psychophysics of sound localization and the spatial attributes of sound, attempting to explain some of the methods used to produce more realistic sound images. Topics include: direct and indirect sound; localization and sound images; precedence effect; and techniques for creating spaciousness and for sonic image enhancement. (JM)

Evaluates two computer programs for Apple II which provide drill and practice in Newton's laws of motion and in work-energy relationships. Student performance is recorded on the diskette allowing the teacher to view the number of questions completed and percentage correct. (JM)

Discusses use of a hornet or wasp nest as an inexpensive science investigation on thermoregulation. The investigation can be done during the winter months and adapted to various levels. Sample results and background material are included. (JM)

Describes a computer program which calculates a best estimate of refractive index and dispersion from a large number of observations using the double variation method of measuring refractive index along with Sellmeier constants of the immersion oils. Program listing with examples will be provided on written request to the author. (Author/JM)

Argues that much of current science curricula and instructional strategies do not accommodate the thinking and reasoning capabilities of students. Level of capacity for abstract logical reasoning, whether the capacity can be cultivated/enhanced, consequences of mismatched intellectual levels and instructional modes, and what thinking/reasoning…

Describes a lecture/laboratory course that stresses physical experience and peer interaction in an inquiry-discovery format. The course is required of all incoming freshmen who are nonscience majors. Highlights of such course strategies as performing experiments that demonstrate physical properties before introducing mathematical concepts or…

Describes a technique for projecting reactions in test tubes by turning an overhead projector on its side. The technique can be used with any ordinary projector. (JM)

In guided design, students are led through the process of solving open-ended problems in "slow motion." Steps in the decision making involved in and examples of guided design projects in a physical science course are outlined and discussed. Comments on student evaluation of the course are included. (JN)

Determined effects of various methods and formats of administering a Piagetian task on college students' (N=376) performance. Concludes neither method nor format influenced subject performance; and this lack of influence is similar for various combinations of method and format. Importance of this finding and implications for teachers are…

A simple device used to demonstrate the main features of primary color addition is described. Materials needed to construct the device, procedures used, and typical results are discussed. (JN)