Describes a series of optical illustions designed to explore the nature and behavior of light, the mechanics and optical principles of eyes, and the brain's learned ability to interpret what we see. (BR)

Describes a one semester course on the study of aviation for sixth graders in Santa Monica, California involving student timelines, construction plates and field trips. (BR)

Presents a resource guide with a broad range of classroom activities and suggested materials for classroom use at the elementary level in the area of careers in airplane transportation. This career development unit seeks to introduce students to different career clusters found in the community and stimulates self evaluation by students. (BR)

Describes an experiment in which possible products of a series of reactions are tabulated together with properties which may be useful in identifying each substance. The student deduces the products and writes a balanced chemical equation for the reaction. (GS)

Describes an experiment which monitors the population of the lowest triplet state by directly observing phosphorescence intensity as a function of time. Reviews the theory concerning triplet state lifetimes, describes the experimental apparatus and procedure, and presents the method and examples of data analysis. (GS)

Opportunities for science learnings at a woodworking bench are listed and described. Scientific inquiry is promoted through free experimentation; opportunities to grasp spatial and mathematical understanding are two examples presented. Helpful information related to use of this instructional procedure is included. (Author/EB)

Presents abstracts of innovative activities of students in grades 7 through 12. Projects include community surveys, student or teacher initiated home/school experiments, scientist-supervised research by high school students, community and school service projects. (EB)

Suggests experiments with field ants which can demonstrate the effect an organism has on its surroundings. The ecological aspects explored are plant distribution on the ant hills and the differences between ant hills and the undisturbed soil surrounding. (BR)

Suggests using a bicycle road rally in the teaching of kinematics and presents a list of suggestions for running the rally. Suggests a ski trip and instruction in the physics of skiing to create student awareness of physics relevance. (GS)

Explains a series of experiments that increased students' awareness and understanding of activation energy, reaction transition states, rates of reaction, provided a neat example of the diagnostic utility of infrared spectroscopy and furnished insight into the accidental research situation. (Author/GS)

Describes an experiment that involves the preparation of a chromium (III)-EDTA compound, a study of its infrared spectrum, and the potentiometric determination of two successive acid dissociation constants. (Author/GS)

Describes the experimental arrangement for x-ray analysis of samples which involves the following: the radioisotopic x-ray disk source; a student-built fluorescence chamber; the energy dispersive x-ray detector, linear amplifier and bias supply; and a multichannel pulse height analyzer. (GS)

Factors of creation of the Academy and the history of its development. (ND)