Describes the investigations of the decomposition of a diazonium salt by the action of light. (LS)

Describes an experiment designed to develop an understanding of the basic acid neutralization reaction of sodium bicarbonate, calcium carbonate, and aluminum hydroxide gel. Presents a procedure for the determination of reaction rate for an antacid in vitro and provides sample data for this determination. (GS)

A recent team-teaching experiment at Redhill Technical College is described presenting the problems, aims, results, and some reflections on the future. (MW)

Summarizes the results of a 1969 experiment survey made for learning the impact of special publications and the trend of experimentation in colleges. Describes some new or modified apparatus that has appared since the 1956 survey. (GS)

This study attempted to determine at what grade levels children develop the ability to combine and control variables, the effect of the elementary science program on this development, and the relationship between a child's ability to control variables and his ability to form combinations of variables. (GS)

In 1986, the Louisiana State Board of Elementary and Secondary Education requested that an advanced course in Biology II be developed. The resulting curriculum guide contains grade appropriate goals, skills, and competencies; suggested activities; suggested materials of instruction; and minimum time allotments for instruction. Biology II is a…

Perspectives, policy issues, and options for Congressional action that relate most directly to the development and implementation of alternatives to animal use in research and testing are addressed in this report. Testimonies and reports include those from the Office of Technology Assessment, the National Institute of Health, and the Food and Drug…

A course was developed to help science teachers in Mississippi teach physics. Most of those teaching the subject were inexperienced in physics, had limited background in the subject, and were in need of help. The course provided these teachers with a deeper understanding of physics principles, emphasized problem-solving strategies, and included…

This unit on the principles of equilibrium is one of 10 first year units produced by the Independent Learning Project for Advanced Chemistry (ILPAC). The unit consists of two levels. After a treatment of non-mathematical aspects in level one (the idea of a reversible reaction, characteristics of an equilibrium state, the Le Chatelier's principle),…