Provides background information on the earthworm. Reviews basic anatomical, behavioral, and reproductive facts. Offers suggestions for procuring, maintaining, and breeding colonies for classroom use. (ML)

Describes how electronic games can help students of varying abilities in building hypotheses and in designing and conducting experiments. Reviews two simulation programs and provides suggestions for classroom instruction. (ML)

Describes an instructional approach which focuses on writing skills as a means of promoting science learning. Gives examples of science writing and research activities for grades two and six. Also discusses the goals, procedures, and results of the project. (ML)

Encourages the use of imaginative writing about scientific phenomena and/or principles. Offers samples of student writings on the concept of succession. Includes a listing of topics which could be used for creative writing exercises and provides suggestions for classroom implementation. (ML)

Reports how a school district's elementary science curricula and in-service programs were improved through a series of minicourses. Appraises the procedure, components, and requirements of this approach. Also describes the science loan kit program that was implemented to facilitate hands-on instruction. (ML)

Reviews the space classroom that would have been conducted by Christa McAuliffe during the space shuttle flight. Includes lab activities, word puzzles, vocabulary lists, and graph reading exercises for elementary science students. (ML)

Offers guidelines and suggests activities that can introduce middle school students to the process and principles of chromatography in an inexpensive and safe manner. Proposes that experiences with Kool-aid and food coloring chromatography can provide insights into how scientists think, work, and communicate. (ML)

Assesses the benefits of a minizoo project which incorporates an animal lending program. Describes the instructional opportunities made available to teachers and students through this offering. Also explains the functions and activities of an animal club for children. (ML)

Provides background information for teachers on the physical and physiological characteristics of fruit flies. Explains their role and function in the study of heredity. Upholds their value as a manageable and safe laboratory animal. (ML)

Offers experiments and activities designed to help students understand the qualities of sound. Provides directives on how to construct simple musical instruments. Suggests ways to help students discriminate differences in pitch, dynamics, and rhythm. (ML)

Develops and explains a format for a workshop which focuses on soap films and bubbles. The plan consists of: a discussion to uncover what children know about bubbles; explanations of the demonstration equipment; the presentation itself; the assembly of the workshop kit; and time to play with the bubbles. (ML)

Introduces questions and activities involving soap bubbles which provide students with experiences in prediction and logic. Examines commonly held false conceptions related to the shapes that bubbles take and provides correct explanations for the phenomenon. (ML)

Presents an overview of a long-term unit centering on observations of biological change. Explains the purpose, procedures, and activities of long-term projects as: watching a plot of land; seeing how a baby grows, and witnessing kitten birth and growth. Suggests additional activities which address the concept of continuity. (ML)

Offers a way of teaching quantitative thinking through a software program called, "Hot Dog Stand." This simulation provides students with practice in planning expenses, in computing problems, and in dealing with a situation in which outcomes depend on random events. Also includes suggestions for computer use during non-scheduled time. (ML)

Reviews the benefits and hazards that the sun provides. Describes activities which focus on the power of the sun and on the development of "Sun-sensible" behavior. Also included is a poster which contains puzzles and additional information and activities on safe sunning. (ML)