Reassesses a common textbook misconception that "...phenols cannot be esterified directly." Results of experiments are discussed and data tables provided of an effective method for the direct preparation of phenyl acetate. (CS)

Describes an advanced inorganic experiment employing the Faraday magnetic susceptibility system. (CS)

Lists eight guidelines for the use of live animals at the pre-university level adopted by the National Association for Biology Teachers in March 1980. (CS)

Describes an undergraduate experiment designed to verify quantitatively the effect of a dielectric fluid's dielectric constant on the observed wavelength of microwave radiation propagating through the fluid. The fluid used is castor oil, and results agree with the expected behavior within 5 percent. (Author/CS)

Presents a six-step problem-solving process which the author has used to present creative science investigations to fourth, fifth, and sixth graders. (Author/SJL)

A group of teachers' advisers and college tutors became interested in developing some "safe" science activities for junior high school physically handicapped students. A series of pacakage experiments on approximately 30 scientific principles were tested for potential drawbacks for the handicapped child. Several experiments are described. (SBH)

Presents results of a two-year study regarding factors causing student difficulties in performing investigative activities in a beginning biology course. Also investigates the usefulness of written guidelines in alleviating these difficulties. A model for student investigations is proposed. (CS)

Describes how the home toilet tank can be used as either a classroom problem or experiment that provides a simple introduction to process control. (HM)

Reports results of a questionnaire surveying opinions of university chemistry departments (N=34) that used integrated experiments in lower- and upper-level chemistry courses. Reviews general problems and advantages inherent in the use of this kind of experiment, which brings together material from several different areas of chemistry. (CS)

Describes a physical chemistry laboratory experiment that illustrates the concepts of inductive and resonance effects by the calorimetric determination of the heats of protonation of pyridine, 2-chloropyridine, and 3-chloropyridine. (CS)

Gives four science lessons for third graders concerning combustion, density, static electricity, and air pressure and surface tension. (RH)

Describes an experiment on heat that utilizes only a styrofoam cup of coffee and a soda straw thermometer. (BT)

This experiment designed for beginning physics students, is related to postal regulations restricting the size of envelopes. A graph is constructed that allows for testing the mailability of envelopes. (MP)

An exercise is presented which demonstrates the determination of sample purity by differential scanning calorimetry. Data and references are provided to enable the exercise to be carried out as a dry-lab experiment. (BB)

The gravimetric determination of calcium as calcium carbonate is described. This experiment is suitable for undergraduate quantitative analysis laboratories. It is less expensive than determination of chloride as silver chloride. (BB)