Discusses a laboratory experiment, using the single-photon counting technique, to determine the fluorescence spectrum of NaI(T1) crystal under gamma excitation. (Author/GA)

Describes a simplified version of New's method for culturing early chick embryos. The technique allows continuous observation of the critical first three days of development and the conditions for setting up successful cultures are also presented to help both teachers and students. (HM)

Seven suggested activities for use in biology classrooms are described. (HM)

Presents thirteen selected chemistry activities which could be used in school chemistry courses. (HM)

Presents five selected physics activities which could be used in school physics courses. (HM)

An activity in which children can learn the concept of the sizes of planets in comparison to the size of the earth is described. Activity questions are included. (SA)

Activities which can be used to integrate the teaching of reading with science instruction are presented. These activities are designed to develop encoding and short-term memory skills. (Author/SA)

Ideas intended for use in a high school biology laboratory are given. Swordtail fish are described as subjects for observation in animal behavior studies. (SA)

An elementary science teacher's technique for stimulating children to think visually, is presented. Through the medium of magic, children are given opportunities to form mental images to explain certain phenomena in science class. (SA)

Describes a physics laboratory for college students, in which the students participate in a firsthand noninertial experience. The equipment and problems are described. (SA)

Describes few heat demonstrations where the use of a coolant spray could enhance their effectiveness. (GA)

Describes an inexpensive technique for providing student opportunities to observe and identify the variety of small animals living in the first few inches below the surface of the soil. A classification key to some small soil animals is also presented. (HM)

Describes how a class of 32 students can simulate the beating of a human heart by having the students themselves act out the various parts of the heart. (HM)

Science is everywhere in a young child's world. Relate concepts to reality and see the joy of discovery. (Editor)

Reports that a study by the author indicates that activity-oriented science significantly improved children's attitudes towards science and school. 154 second, third, and fourth grade students from a lower socioeconomic school were administered questionnaires before and after implementation of activity-oriented science materials. Analysis of data…