Describes an iron-thionine photogalvanic cell designed, constructed and tested by a secondary school student. (PB)

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

Presented is the annual report for fiscal year 1975-76 of the National Academy of Sciences (NAS), including the annual reports of the National Academy of Engineering and the Institute of Medicine. Contents include: (1) report of the President; (2) reports on completed studies including food and nutrition, public health, natural resources, space…

The purpose of this booklet is to bring into the classroom the ecological processes and principles that underlie nature. Students get the opportunity to work with natural objects and to learn about the principles that regulate them. In this revised edition, a number of publications have been compiled and printed under one title. The booklet is…

This publication is a collection of 77 projects which have been designed for secondary science students. The main purpose of the publication is to illustrate what a school technology project is and how it relates to the rest of the curriculum. Some of the projects are investigations while others have the construction of a device as their main…

Alaska is one of the most ideal settings for teaching science. In most of the rural areas, science materials are in abundance starting almost at the school's door steps to a distance as far as a person would like to go. Therefore, it is quite possible to develop science projects for all grades. Some of the projects can be done in the simplest ways…

This teacher's guide has been written for the elementary classroom teacher as an aid and not as a course of study. The guide lists units of study that might be undertaken in any classroom and indicates objectives, activities, teaching aids, and reference materials that will be helpful in the development of the unit. Topics covered include…

Sixth-grade pupils at St. Vivian's school recently studied a science lesson on distinguishing between plant and animal cells. Observation of pupils indicated that learning was occurring, but the enthusiasm they had exhibited in earlier science lessons was obviously lacking. Article discussed a model, designed to stimulate learning processes, from…

A high school student builds a simple drive mechanism for making extended photographic exposures of star clusters. Second and third place winner's projects are described. (EB)

Describes a chemistry project in which lichens are identified by the analysis of the phenolic substances that they biosynthesize. (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.…

Experiments by secondary school students which inflict pain and suffering are described. NSTA policy regarding the use of live animals is presented. An argument for the use of animals in research is given along with a recommendation by the author that animal projects should show a reverence for life. (AJ)

The article provides an example of a project in physics concerning clocks in which gifted pupils engage in high-level problem solving while developing technical knowledge and appropriate scientific methodology. Drawings illustrate the principles taught by the project. (Author/DB)

Methods of investigating plant root growth developed for research purposes can be adopted for student use. Investigations of the effect of water table level and of ethylene concentration are described, and techniques of measuring root growth are explained. (Author/ML)