Reported is a study to verify the pattern of bias associated with the Model Identification Test and to determine its source. This instrument is a limited verbal science test designed to determine the knowledge possessed by elementary school children of selected concepts related to "the particle nature of matter." (PEB)

Presented are some science activities that children can perform using fallen leaves. (PEB)

Compares the effectiveness of a simulation exercise, a simulation game, and conventional instruction at the elementary and junior high school levels. No significant differences were found on students' knowledge of facts and concepts or in their ability to apply them. (SH)

Discusses ways in which teachers can improvise with common household objects and thus avoid the expense of purchasing new science materials. (JR)

Suggests the use of road maps as a means of teaching children the metric system, and outlines a step-by-step procedure for transforming the scale on an ordinary road map into a metric scale. (JR)

Reports the results of a study of the relationship between cognitive style and achievement in a modern elementary science program. (JR)

Discusses ways in which teachers respond to student questions in science. Suggests that the teacher's response should encourage a spirit of inquiry. (JR)

Des cribes the techniques for collecting and maintaining the eggs of frogs and toads (JR)

Examines environmental problems associated with the use of pesticides, and suggests thirty learning activities designed to give elementary school children a better understanding of the problem of pesticide pollution. (JR)

Presents a visual method for displaying the interrelationships between Piaget's work related to children's intellectual development and curriculum development based on an analysis of the processes of scientific inquiry. (PB)

Discusses the use of shadows to explain such scientific phenomena as umbra and penumbra, eclipses, day and night, seasons, and length of day. Indicates that shadow plays can serve to help the students in understanding more about light. (CC)

This paper describes and demonstrates an analysis process which uses hierarchy construction procedures. These procedures are used to analyze the individualized science program. In the hierarchy construction process, the instructional materials are the input data. Separate concept, content, and skill analyses are performed across all levels of the…