Described is a qualitative analysis laboratory procedure for high school chemistry students. The paper received the Science Teaching Achievement Recognition (STAR) award. The procedure acquaints students with certain ions and uses the knowledge of ions to devise a flow-chart for separating and identifying these ions in an unknown solution. (SL)

Suggests that the anatomy of a green pea be studied as the culminating laboratory activity of a botany unit in a biology course. (LS)

Descriptions and pictures of apparatus for use in teaching measurement are accompanied by descriptions of typical uses of the materials. A list of names and addresses of suppliers is included. (SD)

Games and laboratory experiences which can be used to help build basic skills are described. (SD)

This paper describes an experiment designed to reveal the consequences of the development of a concentration boundary layer. The rate of a mass transfer limited electrochemical reaction is measured and used to obtain the dependence of average Sherwood number on Reynolds number and entrance length. (Author/BB)

A high school biology experiment is presented. The success of this experiment may be due to the inability to prove or disprove the hypothesis upon which it is based. (BB)

Reported here are brief descriptions of a common grading and scaling formula for large multi-section courses, an ion exchange amino acid separation and thin layer chromatography identification experiment, a conservation of energy demonstration, a catalyst for synthesizing esters from fatty aids, and an inexpensive method for preparing platinum…

Thin-section photomicrographs are used to introduce the introductory geology laboratory classes to many of the optical properties of minerals. Evaluation by questionnaire suggests that the study of thin sections has a positive effect on the enjoyment and understanding of rock identification and classification by introductory students. (Author/MA)

Seven groups of activities related to the metric system are outlined. Each group is to be done at a laboratory station in the classroom. (SD)

An alternative method of bacterial spore staining using malachite green is described. This technique is designed to save time and expense by a less messy procedure. Advantages and adaptations of the technique are also given. (MR)

Describes a modification to the Jensen and Edwards model current balance utilized in elementary physics laboratories which improves operation and ease of maintenance. (SL)

Describes a reaction system experiment utilizing saponification of ethyl acetate by sodium hydroxide. The activity is part of an undergraduate chemical engineering course. (SL)

Considerations to be made in designing an optometry curriculum for treating patients with eye diseases are reviewed, including the scope of practice and specific areas of instruction in the biomedical, basic vision, and clinical vision sciences. (MSE)

Smaller amounts of materials are used in organic chemistry experiments as a means of improving air quality in the laboratory. Presents a preliminary study of the emissions from selected processes and the mixing of these emissions within the laboratory atmosphere. (JN)

To have students develop observational skills and acquire an excitement about chemistry, stereoscopic dissecting microscopes are used to observe the physical characteristics and chemical reactions of various substances. Several of these reactions (including dissolving potassium permanganate in deionized water and reactions between copper metal and…