Describes an exercise in which students calculate distances and heights from a single aerial photograph. The exercise (which does not require stereo photographic pairs) is adaptable to any aerial photograph for which the flight height, focal length, and photo center are known. (JN)

Describes an experiment designed to introduce students to chromatographic techniques. Also describes a teacher demonstration in which leaves obtained during the spring and fall are analyzed using chromatography. Procedures for both the experiment and the demonstration are outlined. (JN)

Presents a game involving various changes in the population of coyotes through the seasons of the year. Rules, guidelines for student participation, a game board, and game cards (which may be reproduced for classroom use) are included. (DH)

Thin slices of potato can be used to demonstrate the presence of protein, carbohydrates, and nucleic acids at the cellular level. Procedures and materials are provided for these simple tests. Also indicates that the presence of fat can be readily seen by staining avocado with Sudan red or Sudan black. (Author/DH)

A glass jug can be a useful piece of science equipment for demonstrations or student experiments. The use of such a jug for measuring lung capacity, forming a fog with pressure, forming a cloud with ice cubes, making a light beam, and making a smoking machine is described. (DH)

Describes an activity which demonstrates standing waves in air generated by a loudspeaker driven by an audio oscillator. The waves are detected by cool spots on a glowing nichrome wire contained in an inexpensive piece of equipment. Also describes activities involving analysis of kinematics through data taking and graphing. (JM)

Describes and lists sources of ideas for classroom activities in geology. Activities focus on Mount St. Helen's, maps as models, volcanos, and igneous processes. (JM)

Describes a unit on local history developed through the classification of projectile points which may be gathered on a field trip or viewed at a local museum. Suggestions for starting the unit and illustrating the nomenclature of projectile points are provided. (JM)

Describes new methods of collecting and examining ciliates, particularly those found in the sediments of lakes, rivers, and estuaries. Discusses extraction methods in preparation for observations in the classroom. Suggests investigations of ciliate ecology as an area of increasing research interest. (JM)

Describes a science olympiad recommended as an alternative to the science fair, providing organizational details and funding notes. Discusses the competitive events which specifically include chemistry, events from other academic areas, and events designed just for fun which still provide a flavor of science. (JM)

Provides procedures for the study of osmosis and anthocyanin pigments utilizing wet mount techniques with purple onion. Suggests several activities using this preparation. (JM)

Meta-analysis techniques were used to synthesize research on the effectiveness of three major activity-based elementary science programs: (1) the Elementary Science Study, (2) Science--A Process Approach, and (3) the Science Curriculum Improvement Study. Implications for both widespread adoption and curricular decisions, as well as long term…

Provides information on school-year field trips and visits to environmental centers. Also provides suggestions on preparing students and teachers' for the trips, lesson planning, and teaching in the field. Problems related to class discipline on trips and teachers feeling lack of knowledge are considered. (BC)

Describes activities for preschool and kindergarten children that encourage the development of a favorable attitude towards, an interest in, and awareness of the environment. In addition, children will develop observation and processing skills such as identifying, classifying, measuring, and communicating. Objectives, materials needed, and…

Describes research activities and recent findings on disease-causing viruses, fungi, and bacteria. Includes a list of contemporary viruses and what they cause and lists of extra-classroom microbiology activities and student projects. (BC)