Presented are 12 biology experiments suitable for use in intermediate grade classrooms. Topics include plants, protists, fungi, animals, and osmosis. Provided are objectives, lists of materials, procedures, results, and explanations of the results. (CW)

Presents a lesson on introducing writing into the science curriculum by using an experiment to illustrate the detrimental effect of tobacco smoke on human lungs. Outlines the materials, procedures, a summary of the project, extension activities, and additional information about the writing process. Two handout sheets are included. (RT)

Describes modifications and procedures needed for parasitic lampreys to be kept in a closed system. Presents information dealing with obtaining the organisms, tank modifications, temperature, feeding, disease prevention, and animal welfare. A discussion is included. (RT)

Uses a method which involves weighing out an amount of the appropriate weak acid or base and dissolving it in distilled water close to the final volume. Solution is then titrated with strong acid or base to give the desired pH. Provides three examples. (MVL)

Presents a practical and attractive alternative to the sand bath used in the microscale procedures developed by Mayo, Pike, and Butcher. Urges the organic chemistry teaching community to continue towards complete conversion to microscale techniques. Presents the use of aluminum devices in the microlaboratory. (MVL)

Describes the ENLIST Micros program and manuals based on results of a national needs assessment. The program name came from the object of the program to ENcourage LIteracy of Science Teachers in the use of Microcomputers. Listed are 18 objectives for training materials and 12 appendices. (YP)

Examines the use of a computer simulation program as a tool to help in the understanding of wave phenomena. After analyzing some of the main difficulties and common misconceptions about waves, features of the "Making Waves" software package are described. Figures showing a typical monitor display are presented. (YP)

Describes the titration of a weak base with a strong acid and subsequent treatment of experimental data using commercially available software. Provides a BASIC program for determining first and second derivatives of data input. Lists 6 references. (YP)

With thousands of activities available, how does a teacher select activities appropriate for the classroom? Describes the guidelines of the "Science Activity Filter," which provide a useful protocol for evaluating science activities for their value in the classroom, allowing the teacher to use resources effectively, minimize discipline and safety…

Describes an interdisciplinary project from the University of Costa Rica conducted to contribute to the improvement of science teaching in primary schools by adopting the Science Curriculum Improvement Study. Changes included the use of woods, rocks, shells, and rain water in science class and integration of science with other subjects. Student…

Proposes the V-Scope as a teaching aid to measure, analyze, and display three-dimensional multibody motion. Describes experiment setup considerations, how measurements are calculated, graphic representation capabilities, and modes of operation of this microcomputer-based system. (MDH)

Discussed is the difference between reading fiction and reading science. The importance of reading orally and developing an awareness of text structure are discussed. A checklist and questions for analyzing the language structure of science textbooks are included. (KR)

Describes a kit designed as a leisure time activity for teenagers and adults who have had little previous experience of magnetism and electricity. The kit may be useful for homework, small group work, or as a training course for nonscientist science teachers. (PR)

Describes recently published children's books in Spanish that explain basic facts about animals; introduce students to ecology, the environment, popular inventions, and some of the world's most amazing structures; and entice the very young reader into nature. Titles are divided into the areas of biology, ecology, general science, earth and space…

This teacher's guide to microgravity contains 16 student science activities with full background information to facilitate an understanding of the concepts of microgravity for teachers and students. Topics covered in the background sections include the definitions of gravity and microgravity, creating microgravity, the fluid state, combustion…