Describes a scientific mystery with an emphasis on chemical magic presented in the context of the characters Sherlock Holmes and Dr. Watson. The story contains a break where students and teachers pause to ponder and solve the mystery. Sherlock Holmes provides his solution in the paragraphs following this break. (WRM)

Explores the ecosystem in Pacific Northwest Coastal America and investigates land management issues. Discusses the impact of canopy trees on temperature and the forest itself. Explains fungi's relationship with trees and presents activities on stream flow, wood, volcanoes, and plants for the classroom. (YDS)

Presents a homemade, safe, effective, and inexpensive reactor vessel for ultrasonic horns with applications in microscale experiments in teaching and research laboratories. The reactor vessel is designed for an ultrasonic probe that allows reactions to be run at the microscale level at a wide range of temperatures and under inert atmosphere.…

Describes a procedure that allows undergraduate students to determine the approximate age of the universe using their own data. The experiment requires a relatively small telescope with a modest spectrograph. Includes sample data and calculations. (Contains 11 references.) (Author/WRM)

Shares an approach to tree identification that can be adapted to use with all levels from middle school through college. Stresses student involvement and cooperation in a botanical scavenger hunt. Describes the development of the treasure map and how to use the guide sheet. (DDR)

Explains a series of laboratory activities which employ a microwave oven to help students understand word problems that relate to states of matter, collect data, and calculate and compare electrical costs to heat energy costs. (DDR)

Describes two simple experiments on staring which have been tested with children as young as eight. Both procedures involve a looker and a subject where subjects say whether or not the looker is looking. The score in looking trials is usually above the 50% chance level. Includes score sheet. (PVD)

Presents an activity on the study, collection, and analysis of snow. Provides students with opportunities to conduct fieldwork in a collaborative team fashion and develop skills in formulating and testing hypotheses. (DDR)

Explains how solar eclipses occur and provides information on future eclipse events. Also includes a solar eclipse viewing activity. (DDR)

Argues that ongoing cooperation between teachers and maintenance personnel is required when planning and implementing schoolyard projects. Reviews planning, safety, and physical security considerations. (DDR)

Describes a spreadsheet activity for the iodine-clock reaction which follows the concentrations of all reactions and products for 200 seconds and gives the induction period. Explains that, although there are limitations to the spreadsheet, it is nevertheless illuminating. (Author/ASK)

Argues that good science can be enhanced and enlivened, integrated with other curriculum areas, and made more relevant to a student's world through the use of the arts in instruction. Provides examples of art in science through music, poetry, science fiction, and visual art. (DDR)

Describes an activity that employs the study of unicorns as an enjoyable and vivid means by which young children can learn to distinguish fact from fantasy. Students learn about the characteristics of animals suspected of being unicorns. (DDR)

Demonstrates how leaf slices provide an inexpensive material for illustrating several fundamental points about the biochemistry of photosynthesis and respiration. Presents experiments that illustrate the effects of photon flux density and herbicides and carbon dioxide concentration. (DDR)

Introduces three science activities for elementary and middle school students on the concepts of heat transfer and temperature. Includes two learning cycles. The first learning cycle examines the effects of temperature on air movement, and the second learning cycle investigates heat movement in water. (YDS)