The relationship between tadpoles, algae and drinking water for wildlife is discussed. Six projects that students can do to learn more about the ecological benefits of tadpoles and frogs are described. A bibliography is included. (AJ)

Describes how to construct a simple pendulum seismometer. Includes schematic drawing of the electronic circuitry, a working drawing of the apparatus, and typical seismometer outputs caused by nearby trains and various earthquake-generated waves. (JJK)

Analyzes the process of large scale curriculum development. Locates the projects and their development within the range of approaches advocated in science education and considers the practical decisions taken during the development in relation to theories of curriculum development and change. (ZWH)

Describes an activity that allows students to design and build a craft whose propulsion is derived entirely by the carbon dioxide produced in the chemical reaction between baking soda and vinegar. (ZWH)

Examines the practice of holding competitive science fairs. Offers suggestions on judging, competition and recognition, student participation, and alternative experiences. (MA)

Outlines and illustrates the Dartmouth approach to developing a science project. This problem-solving approach, promoted by the Thayer School of Engineering at Dartmouth College, helps teachers in guiding students in all phases of project work. (JRH)

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)

This handbook is designed as a guide for teachers and students in choosing and developing mathematics projects. Included are materials ranging from simple demonstrations of mathematical problems or principles that the teachers had assigned as classroom learning experiences to complex, sophisticated exhibits intended for fairs and competitions. The…

Included are abstracts of 40 science projects for secondary level courses of biology, physical science, and chemistry. (SL)

Presents an effective way to start a technological revolution in schools by beginning with a single exciting project that incorporates new technologies and then letting interest in the project prompt others to action. (JRH)

Describes the organizational framework, didactic and methodological considerations, and the content of a four-day astronomy project in a secondary West German school. Presents information on the media used and related literature. Appended are the instruments of observation. (DB)

Describes a secondary project in which students must organize an expedition to settle the people of the Earth on a new planet. (MLH)

Historical uses of Arum maculatum (L.) are summarized. Temperature changes during spadix maturation, spathe uncurling in the presence of flower tissue, indol-3-y1 acetic acid, and gibberellic acid are investigated in the laboratory. Dilute solutions of both phytohormones cause significant spathe uncurling. Further investigations are suggested.…