Described is the use of ordinary ceramic magnets to replace the more expensive bar magnets commonly used. Suggestions for 11 task cards to help introduce children to the uses and principles of magnetism are provided. (CW)

Described is an experiment designed to illustrate photosynthesis. The experiment is based on a classic experiment performed by vanHelmont in the sixteenth century. A list of materials, procedures, and concepts are discussed. Variations are suggested. (CW)

Provides a calendar for the month of November on which are placed directions and pictures for different activities that can be performed each day. Outlines materials and procedures for an experiment. Includes information on an acid rain teachers kit, availability, and price. (RT)

In a poster session, students explain an experiment with the help of a poster that outlines the experimental procedures followed. Suggestions for preparing posters and conducting poster sessions are provided. A sample poster on the strength of electromagnets is also provided. (JN)

A set of instructions for growing algae successfully in the classroom and maintaining the culture is provided. Aids for identification of freshwater organisms are suggested. (SA)

Three activities involving electromagnetism are presented. Discussed are investigations involving the construction of an electromagnet, the effect of the number of turns of wire in the magnet, and the effect of the number of batteries in the circuit. Extension activities are suggested. (CW)

Discusses a research project of testing detergents that resulted from students' classroom observations of and questions about water pollution and suds. Outlines procedures and responsibilities necessary for conducting the experiment. A sample student data sheet is included. (RT)

An activity is described in which students learn modeling skills by creating concrete models with familiar objects. Teaching methods, materials, procedures, and outcomes are discussed. (CW)

Activity suggestions for the months of September and October are provided in a calendar format. In addition, two activity sheets, which provide detailed information for studying the moon and the alphabet including materials, and procedures are provided. (CW)

Presents chemistry activities suitable for elementary students. Lists chemicals commonly used in elementary science, their common names, and where they may be obtained. (DS)

Described are two activities designed to help children investigate electrical charges, electric meters, and electromagnets. Included are background information, a list of materials, procedures, and follow-up questions. Sources of additional information are cited. (CW)

Describes science activities which use simple chemical tests to distinguish between materials and to determine some of their properties. Explains the water, iodine, heat, acid, baking soda, acid/base indicator, glucose, and sugar tests. Includes activities to enhance chemical testing and a list of suggested powders for use. (RT)

Describes a fourth-grade unit on density which introduces a concept useful in the study of chemistry and procedures appropriate to the chemistry laboratory. The hands-on activities, which use simple equipment and household substances, are at the level of thinking Piaget describes as concrete operational. (BC)

Directions for the construction of a model bog habitat are provided including examples of plants and animals which may be suitable. Activities that use this model are suggested. Background information on the ecology and chemistry of the bog is included. (CW)

Outlines steps for involving problem students in discovery-oriented science activities. States that planning is the basis for an effective lesson. (RT)