Presents a science activity that illustrates the need to collaborate in scientific inquiry. The example utilized describes the methods used by the Roman doctor Galen to treat epilepsy. (MDH)

Provides guidelines for simple acceleration experiments with string and attached weights as a means to stimulate the reticular activating system (RAS) of the human brain. Several methods (discrepant events, curiosity, choices, and doubt) are suggested for promoting RAS high-level thought. String drop experiments provide concrete experiences with…

Procedures for dying and mordanting wool fibers and for preparing dyes from red onion skin, purple cabbage, pine needles, and purple lilac are presented. Information on the history of dyes and on how dyes work is included. (JN)

Suggests using squids for classroom investigations. Background information about these marine animals and a dissection activity are included. (JN)

Provides background information on honey ants. These ants are found in dry or desert regions of North America, Africa, and Australia. Also provides a list of activities using local species of ants. (JN)

Teachers may introduce students to anamorphic art (images designed to be looked at with conical mirrors or with mirrors diagonal to the image) with inexpensive cylindrical mirrors. By using polar graph paper, images can be made "correctly distorted" and will appear normal when viewed with a cylindrical mirror. (DH)

Mechanically-minded middle school students who have been studying electromagnetism can construct inexpensive telegraphs resembling Samuel Morse's 1844 invention. Instructions (with diagrams), list of materials needed, and suggestions are given for a simple telegraph and for a two-way system. (DH)

Describes science activities related to endangered species designed to sensitize students to the process of extinction; learn of the human role in that process; and emphasize the importance of National Wildlife Week. Provides activities and games such as drift traps, webbing, making corrections, What animal am I?, and Noah's Ark. (JM)

Uses Columbus' journey to teach science concepts. Reports on a questionnaire for grade 4-8 students (n=279) designed to determine what basic information the students knew about Columbus' journey, peoples' beliefs about the earth at that time, what Columbus discovered, and the effect on Native Americans. Integrated science activities on the size…

Introduces an educational program about acquired immune deficiency syndrome. Explains main points at various grade levels and shows some examples of teacher's talk for K-3, 4-6, and junior high levels. (YP)