Presents the procedures, and findings of a study designed to identify principles in astronomy, geology, meterology, oceanography and physical geography pertinent to general education programs in junior high schools. (LC)

The Problem-Solving Skills Test" developed by the authors can be used to evaluate student abilities, regardless of what science programs the student has studied. Also, it can be used to evaluate whether the objectives of new elementary school science curricula have been attained. Major limitation is the lack of external criteria for determining…

Present knowledge about Mars is compared with past beliefs about the planet. Biological experiments that indicate life may exist on Mars are interpreted. Life patterns or biological features that might be postulated for extraterrestrial life are presented at the molecular, cellular, organism, and ecosystem levels. (DS)

Reviews evidence from molecular genetics and biochemistry, which supports the idea of some evolution, due to chance and selectively neutral mutations, occurring independently of natural selection. (AL)

A Discussion of attempts to understand the great inter-relationships among all areas of knowledge" by Neils Bohr, a physicist, and others. (SE)

The often observed and misunderstood phenomenon of movement of black and white vanes in toy radiometers under illumination is discussed in a generalized non-mathematical manner. Effects of light pressure, low gas density, friction, heat, and motion are illustrated. (JM)

Capillary and gravity water waves are related to the position, wavelength, and velocity of an object in flowing water. Water patterns are presented for ships and the whirling beetle with an explanation of how the design affects the objects velocity and the observed water wavelengths. (DS)