Describes events of the championship including scale model competition, flight duration with a parachute, flight duration of a rocket-propelled glider, and egg lofting. Winners' names are given. (MA)

Describes how to construct a simple on-axis hologram designed to illustrate the reconstruction of images in terms of Fresnel zone plates and gratings. (GA)

Experiments are described in which inhibitors are used to investigate the timing of transcription and translation of the messenger RNA for the enzyme invertase. It is suggested that plant tissue slices provide adaptable material with which to study enzyme induction, protein synthesis, and cell differentiation at sixth-form level. (Author/MA)

Examines the phenomenon of water drops that float on water at room temperature. Describes experiments that have been done to study this phenomenon. (MA)

Two physics experiments are described, One, involving a laboratory cart accelerated along a level surface, examines the concept of inertial mass in translation and the other, using a solid cylinder, measures the moment of inertia of a wheel. Equations and illustrations are included. (MA)

Discusses science and technology centers as facilities that provide the general public with participating exhibits and experiences. Also discusses science center attendance, characteristics, and their opportunities for educational research. (SL)

Describes a method of producing photographs of X-ray diffraction patterns using Kodak X-ray film. (SL)

Describes selected activities from the Technology-People-Environment (TPE) curriculum designed to improve the technological literacy of secondary school students. (SL)

Describes an experiment on Doppler effects using air cars on a linear air track and a homodyne Doppler radar system. (SL)

Reviews various science activities investigating polarized light. (SL)

Describes an exercise for obtaining the diameter of Venus by timing its occultation by the Moon, for a liberal arts astronomy course. (SL)

Discusses the technique of utilizing "silent" demonstrations, demonstrations with a minimal of instructor initiated information, for teaching secondary level chemistry. (SL)

Describes an experiment for second year students designed to illustrate lectures devoted to electrochemistry and thermodynamics. (SL)

Describes an itinery for a four day camping trip into the Olary district of South Australia. Provides numerous geologic activities. (CP)

Describes a simple activity designed to show the effects of leaching and evaporation on salts in the soil. (CP)