Outlines the steps necessary to conduct a science fair project and examines two specific examples of how a basic idea for a science fair topic can be followed to its completion. Provides examples of day-to-day operational science in a basic botany project and a lunar geography project. (JJK)

Introduces the basics of radio astronomy and describes how to assemble several simple systems for receiving radio signals from the cosmos. Includes schematics, parts lists, working drawings, and contact information for radio astronomy suppliers. (11 references) (Author/JJK)

Reviews the discovery, the properties, and the composition of the physical phenomena of fields with a focus on magnetic and electrical fields and what makes them special. Provides a method to detect and estimate the strength of electromagnetic fields using an ordinary portable radio. (Author/JJK)

Israel's Sciempiad is an annual nationwide science competition for students ages 14 to 15, designed to stimulate interest in science and identify students with potential to become leading researchers. This article discusses how the selection procedure was determined and outlines steps in the selection process. (JDD)

Argues that scaling laws (square-cube law) used to predict the physical consequences of increasing and decreasing an object's size should be made a part of the high school science curriculum. (ZWH)

Describes three census activities concerning birds and butterflies that involve students in the actual collection of biological data. A Project Feederwatch data form is also included. (ZWH)

Describes how literature can be used in the science classroom. Discusses Activities; Promoting Excellence in the Classroom; Equity for all Students; and Adapting the Method. (ZWH)

Describes how a film regarding a controversial issue (evolution education) can be used in the classroom to generate student interest and initiate excellent opportunities for teaching critical thinking skills in high school biology. Daily activities are provided to demonstrate how a lesson on evolution was built around this film. (ZWH)

Describes a project designed to allow middle school students to learn some science concepts through application of science and mathematics lessons. (ZWH)

Discusses how you can use a sonar-based fish finder to engage students in an activity that allows them to make their own topographic map of a surface that they cannot see. (ZWH)

A simple technique is described by which the cells attached to plucked hair can be observed and used to demonstrate dividing and differentiating cell populations. The necessary equipment and the procedure are listed. (Author/KR)

An activity that incorporates the concepts of plant structure and function and ecology is described. Students investigate the reasons why some California chaparral seeds germinate only after a fire has burned the surrounding chaparral. The procedure, discussion and analysis questions, expected results, potential problems, and additional activities…

A procedure for estimating the speed and distance of plane, assuming the speed of sound and the velocity of the plane are constant, is described. (KR)

A procedure for measuring the speed of light using the assumption that the frequency of light remains unchanged as it moves from one medium to another is presented. A laser with a known wavelength and frequency in air was used as a light source. (KR)

A quantitative and inexpensive way to measure the rate of enzymatic reaction is provided. The effects of different pH levels on the reaction rate of an enzyme from yeast are investigated and the results graphed. Background information, a list of needed materials, directions for preparing solutions, procedure, and results and discussion are…