Articles in the theme issue, Democracy, are discussed and suggestions for teaching various world forms of democracy are made. (JB)

Describes experiments demonstrating that root pressure in plants is probably controlled by a circadian rhythm (biological clock). Root pressure phenomenon plays significant part in water transport in contradiction with prevalent belief. (PS)

One of a series on different topics designed to guide college physicists to some of the literature and teaching aids that may help them improve course content. (DF)

Describes some laboratory projects to enable high school students to learn about bromelin, a protein-digesting enzyme. (PS)

Short notes on a variety of science topics provide information derived from space sciences that can be used to add interest and up-to-date data to science lessons. Topics are arranged alphabetically from Alpha particles to X-rays, and include some from each of the physical, earth, and biological sciences. (AL)

Wadsworth, Republican Congressman from New York, worked from the end of World War I to convince Americans that Universal Military Training was the preferred way to remain strong militarily. (JB)

The rapid growth of community education has been evident through advances on a number of action fronts. Of particular significance has been the increasing support of community education by the Federal and State governments, by professional associations, and by other important interest groups. (Author/JH)

Consideration of the force of gravity in some simple accelerated systems. Ambiguity about the use of up'' and down'' arises in coordinate systems not at rest with respect to the surface of the earth. (DF)

A survey conducted to determine teacher's instructional resources, methods, materials, and attitudes toward various uses of nuclear energy resulted in nearly one thousand science teachers throughout the nation responding. Results of survey are presented and five recommendations for action are made. (DF)

Sequent occupance'' is one of the fundamental geographical concepts explored in the American High School Geography Project. Its investigation involved the use of a variety of local source materials, often historical in their nature but significant in their geographical implications. One method of approach for school use is here illustrated by the…

Discusses the basis of the theory of preformation used in teaching heredity and development. English translation of the original document written by Hartsoeker is included that reveals the theory was an imagined one without concrete evidence. (PS)

Describes multiple uses of empty film cans for equipping an elementary school science classroom. Instructional units in which film cans may be useful include buoyancy, mobiles, growing seeds, peas and particles, rocks and minerals, structures, field studies, sound, balancing, electricity, pedulums, chemical change, and optics, light, color. (PS)