Examines President Ronald Reagan's visit to the Wilco Area Career Center (Romeoville, Illinois). The author describes the educational areas the president visited, demonstrations on equipment performed by students, reactions of students and of the president, and what the benefits of such a visit are to the school. (CT)

Describes the construction of an amplifier and force transducer that can be used to demonstrate electrical activity in nerve and muscle using the gastrocnemius muscle and sciatic nerve of the frog. (MLH)

Listed, with comments and descriptions, are the addresses of suppliers of crystal and molecular models. Included are United States and English suppliers. (SL)

Presented are five science teaching ideas including: (1) a method for anesthetizing frogs with Finquel, (2) a demonstration of gene drift utilizing poppet beads, (3) description of a successful school arboretum project, (4) the use of acrylic plastic for making science laboratory equipment, and (5) a description of a model cell made from Baggies.…

Regulations require hazardous gases in school science classrooms to be controlled, i.e., their levels in the air kept below the exposure limits, with fume cupboards being the most usual method. This document reviews the requirements for fume cupboards used in schools and colleges for teaching the sciences, mainly chemistry and biology, up to…

Reports the effects of exposing both kindergarten and elementary school children to high and low speed motion pictures on children's estimation of time. Concluded the children's judgment is dependent upon their chronological ages and daily experiences of visual perception. (CC)

Discusses the technique of producing a grating with a spacing of 1 micron and 5 slits 50 microns long and 0.3 micron wide. Indicates that the slits are suitable for use in examination of electron diffraction patterns in the Gedanken experiment. (CC)

Discusses concerns relating to the preparation of internal and external practical examinations in microbiology at the university degree or diploma level. Outlines the basic objectives, initial organization, and major considerations in preparing the laboratory examination. (JR)

Discusses the design of a modified loop-the-loop apparatus in which a water stream is used to illustrate centripetal forces and phenomena of high-velocity hydrodynamics. Included are some procedures of carrying out lecture demonstrations. (CC)

Discusses the design of a device which serves to demonstrate the principle of acceleration and phase stability by accelerating gravitationally a ball bearing along a spiral groove. Application of the design principle to the acceleration aspect of a linear accelerator is recommended. (CC)