Sixth graders participated in a long-term project involving archaeological processes. Activities included finding background information, site preparation, excavation, record keeping, cleaning artifacts, and classifying items. This pilot project was very successful in Arizona and will be expanded to include more grade levels and groups. (DH)

Presents background information and activities which focus on definition of a desert, locations of deserts, and factors influencing locations. Activities include objective(s), recommended age level(s), subject area(s), list of materials needed, and procedures. Two ready-to-copy pages with desert landforms and temperature/rainfall data are…

Describes activities, games, experiments, demonstrations, and computer-oriented exercises in all science areas. Topics include energy flow through a marine ecosystem, using 2,4-dichlorophenoxyethanoic acid to demonstrate translocation in plants, use of the dichotomous key, use of leaf yeasts to monitor atmospheric pollution, and others. (JN)

Offers examples of activities and practical ideas for the instruction of process skills in a laboratory setting. Includes suggestions for the processes of observing, comparing, inferring, collecting data, organizing data, interpreting results, identifying variables, formulating hypotheses, experimenting, predicting, and model building. (ML)

Mammals that tolerate the winter cold and stay active all year exploit the harsh northern climate to their advantage. By simple experiments and observation you can better understand their adaptations which include furry bodies, snowshoe feet, extra blubber, light coloration, and strategically distributed food caches. (JHZ)

Describes a computer simulation program which helps students learn the main biochemical tests and profiles for identifying medically important bacteria. Also discusses the advantages and applications of this type of approach. (ML)

Presents a diversity of concrete experiences that can be used with eggs for young elementary age students. Includes procedures and material list for several activities that are hands-on and interdisciplinary in nature. (ML)

Provides examples of science experiments and demonstrations that are centered on the theme of eggs. Activity explanations include: (1) the floating egg; (2) egg-in-the-bottle; (3) walking on eggs; and (4) egg balancing. (ML)

Describes an activity in which two pulleys are connected by a wire loop; when the bottom pulley is dipped into hot water, the pulleys rotate. Also suggests that students design/build a machine to propel a bean; the machine must use materials including one bean, two plastic straws, and two rubber bands. (JN)

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 ring doves in the classroom for observing behavior patterns and the entire reproductive cycle. Requirements for space, food, and care are minimal and easily obtained. Students can observe: male participation in nest-building; care of young; and (using candlelight) embryos and heartbeats because of the thin egg shells these birds…

Presents an annotated list of references for activities and demonstrations on earthquakes and seismology. Activities relating to faults and fault planes are not included. (BC)

Describes activities involving Bernoulli's principle which allows students to experience the difference between knowledge and scientific understanding. Explanations for each of the activities (using such materials as wooden spools, straws, soda bottles and table tennis balls) and explanations of phenomena in terms of Bernoulli's are provided. (BC)

Presents a set of facts extracted from a high school biology textbook and two example paragraphs that students wrote in which they pulled these facts together. An analysis of each writing sample in terms of logical transition and clarity is presented. Suggests this method to help students construct relationships. (BC)

Success of the Murch Elementary School (Washington, DC) science fair is due to many factors which are applicable to other schools. Suggestions, ideas, and hints are given in this description of the school's program. Projects with an electrocardiogram, water weeds, and preserving ice are also discussed. (DH)