Describes construction of a pinhole camera with simple materials and five experiments to be conducted, as well as instructions in creating a working camera obscura. (BR)

Illustrates some important characteristics of photosynthesis, concentration dependencies of reaction rates, temperature effects, and effects of changes in actinic wavelength. (GS)

Criticizes the philosophy and management of several research projects of the 1960's. The procedures employed by second language learners unconstrained by group arrangements, teacher presentation, or other major interventions in their learning opportunity need to be studied. Only then can a theory of second language learning be constructed.…

Weights suspended from a lever arm separate evacuated hemispheres allowing estimation of atmospheric pressure to within five percent of the barometric reading. An illustration and a reference to von Guericke's demonstration are provided. (GH)

Describes a project to produce a series of laboratory manuals and instructional materials in which nuclear experiments are presented for the undergraduate advanced laboratory. The manuals are being compiled in the areas of physics, chemistry, geology and environmental sciences. (BR)

Describes a method (involving a Hach Colorimeter and simplified procedures) that can be used for the analysis of up to 56 different chemical constituents of water. Presents the results of student analysis of waters of Fulton and Montgomery counties in New York. (GS)

Gives a brief survey of the different versions of the air trough and related devices. Presents some of the applications of this equipment in the teaching of the concepts of inertia, acceleration, and velocity. (GS)

Problem solving that both requires and develops higher-order thinking skills is illustrated in the EQUATIONS Challenge Matches program, which consists of computer diskettes at the elementary, intermediate, and advanced levels plus a multi-level diskette. Samples of computer output are given, with the results of various types of experimentation…

This unit is one of 10 first year units produced by the Independent Learning Project for Advanced Chemistry (ILPAC). The unit, which consists of two levels, focuses on the elements and compounds of Group IV (halogens) of the periodic table. Level one deals with the physical and chemical properties of the individual elements. Level two considers…

An experimental tool is described for the investigation of the human control behavior for slow responding dynamic systems. The Program for Research on Operator Control in an Experimental Simulated Setting (PROCESS) is a simulation of a dynamic water-alcohol distillation system that can be used in research on operator training. In particular,…

Linguistics is on the verge of becoming an experimental discipline; an undergraduate major tailored to reflect this can attract a wider range of students, relate linguistics subject matter to the real world in a more exciting way, challenge students to address more deeply the problems of philosophy and philosophy of science than in some other…

This guide, the second in a series of three, provides the intermediate science student and teacher an opportunity to review selected science concepts and processes through activities which emphasize the applicability of scientific knowledge in the professional world. The guide is divided into three components. The first component helps students…