This paper describes an attempt to evaluate the contribution of laboratory experiments on student achievement in an elementary, one-term college chemistry course and suggests some less expensive alternatives. (Author/BB)

Described is an experiment that allows students to determine the distance to the moon by triangulation. Included is a description of parallax methods and photographic techniques. (CS)

Describes a student experiment in which a pendulum is swung through angles up to 160 degrees by suspending it on a solid rod. Graphical analysis is used for empirically determining parameters. (MLH)

Lists materials and procedures for experimenting with detergents. Included are methods for determination of the densities of dry detergents, ph values of detergent solutions, and a discussion of the ability of detergents to remove iodine stains from cloth. (CS)

Presented are accounts of how two local jurisdictions in the United States have dealt with the question of regulating recombinant DNA research. Arguments used to devise guidelines for consideration by the New York State Legislature and the recommendations made by a citizens group in Cambridge, Massachusetts are detailed. (CS)

Reproduced is the report made by a citizens' group in Cambridge, Massachusetts and presented to the city council that outlines safety regulations for the conduct of recombinant DNA research at Harvard University and the Massachusetts Institute of Technology. (CS)

Describes a laboratory project for first-year biology students that examines competition among various cellular slime molds. After a brief introduction to the topic of competition and basic life history information about cellular slime molds, students choose a question and design original experiments to seek an answer. (Author/AIM)

Describes an approach for making chemistry relevant to everyday life. Involves the study of kinetics using the decomposition of hydrogen peroxide by vegetable juices. Allows students to design and carry out experiments and then draw conclusions from their results. (JRH)

Presents experiments with polarized light for grades 8-12 which can produce colorful effects with a minimum of equipment and can illustrate many principles of physics, chemistry, and geology. (MKR)

Describes an experiment designed to measure absolute zero using Charles' Law without the use of mercury. Provides the procedure and details of the apparatus and includes experimental results obtained using the apparatus. (DDR)

Describes a university outreach program that aims to enable teachers and students to learn the content and process of modern scientific inquiry by engaging in research and communicating their findings to others. (DDR)

Presents a set of activities for testing consumer products to encourage students to learn how to use scientific investigations in their everyday lives. Describes the penny flip experiment and testing a detergent. Students learn in a hands-on manner the importance of completing accurate laboratory reports, which allows them to analyze results and…

Presents an experiment that is quick and easy to prepare, visually striking, and amusing to students. Relates to several key chemical concepts including polarity, intermolecular forces, solubility, and spectrophotometry. (Author/NB)

This article gives examples of science teaching for gifted students from the Young Persons' Institute for the Promotion of Art and Science in Tel Aviv (Israel). Emphasis is on fostering curiosity and experimentation. Examples are offered in teaching about the weather, water, and light and color. A model experiment to teach electricity principles…

Describes a science and math activity that involves bubbles, shapes, colors, and solid geometry. Students build geometric shapes with soda straws and submerge the shapes in soapy water, allowing them to review basic geometry concepts, test hypotheses, and learn about other concepts such as diffraction, interference colors, and evaporation. (TJQ)