In this experiment, benzylic hydrogen reactivity is used to prepare dimers of a variety of alkyl benzenes, and the benzylic hydrogen reactivity of these compounds are compared. (BB)

This simple two-phase procedure for the oxidation of secondary alcohols to ketones is applicable to a wide variety of substrates and is also ideally suited for the undergraduate laboratory. (BB)

Describes a titration procedure done in glacial acetic acid. (BB)

Describes use of tail muscles and spinal cord in the tadpole as an alternative source for muscle-and-nerve experiments. Includes explanation of simple dissection and preparation of tadpole; instructions for experiments such as threshold, strength of stimulus, frequency of stimulus, single twitch, tetanus, fatigue, effects of temperature on…

Argues for the need to provide students with independent scientific research experiences to explore scientific developments that have changed their world. Enables students to develop minds-on science skills through scientific inquiry. (DDR)

Illustrates how teachers designed new science learning environments based on research readings from science and technology studies and studied teaching and learning within these environments. Examples of students' science-related activities include videotaped laboratory activities, taped interviews, and student-produced artifacts collected over…

Describes several of the labs developed by Project CLEA (Contemporary Laboratory Experiences in Astronomy). The computer labs cover simulated spectrometer use, investigating the moons of Jupiter, radar measurements, energy flow out of the sun, classifying stellar spectra, photoelectric photometry, Doppler effect, eclipsing binary stars, and lunar…

Presents an instrumental analysis laboratory section of a problem-based format that includes elements of authentic, investigative, and cooperative learning. Discusses students' attitudes, achievement, and effects of the problem-based instruction on the learning process and higher order thinking in laboratory students. (KHR)

Urges the use of plastinated specimens as an alternative to traditional dissection in biology classrooms. Suggests that plastinated biological specimens heighten student interest and enhance teaching. Interview responses of students, teachers, and administrators to the use of plastinated specimens in selected high schools were found to be very…

Describes results and experiences of four field-course experiments designed to explore the relationships between animals and their physical environment. Reports on the response of animals to flow rate of water, relationship between size and rate of locomotion, and mathematical and physical techniques used to study how animals live. (RT)

Presents experiments which show that in electrostatics there are logical reasons for describing charged materials as positive or negative. Indicates that static and current electricity are not separate areas of physics. Diagrams of experiments and circuits are included. (RT)

Discusses a research project of testing detergents that resulted from students' classroom observations of and questions about water pollution and suds. Outlines procedures and responsibilities necessary for conducting the experiment. A sample student data sheet is included. (RT)

Children should learn early that science is about doing, about experimentation, and not about recalling facts. This article suggests science curriculum ideas that emphasize process and discovery. A sample lesson plan employing the scientific method is given as well as a resource list that contains suggested sources for experiments. (IAH)

Describes an apparatus that facilitates the quantitative study of fermentation in yeast by allowing simultaneous measurements of fermentation rates in several treatments and a control. Explains a laboratory procedure in which the apparatus is used. Several suggestions for further investigations are included. (Author/RT)

Describes a three-week summer program teaching selected chemistry faculty how to incorporate polymer chemistry into chemistry courses. In addition to lectures, the program conducted many experiments and provided a trip to industry laboratories. (YP)