Designed for first-year students of radiochemistry and atomic physics, this experiment tests the fundamental Moseley Law and introduces the method of elemental chemical analysis by X-ray fluorescence. (Author/MLH)

Describes an experiment for the undergraduate electricity and magnetism or mechanics laboratory to investigate free and driven oscillations. The RLC circuit is pulsed with a pulse generator when free oscillation is being studied and is driven with a low-impedance sinusoidal generator when driven oscillation is being studied. (Author/MLH)

Describes an apparatus suitable for measuring magnetic susceptibility in the undergraduate laboratory. Several applications are considered in detail, and extension of the technique to nonmagnetic studies is briefly discussed. (Author)

Provides abstracts and materials requirements for 20 chromatography projects. Experiments range in complexity; some require synthesis steps, apparatus construction, or special preparation techniques. (MLH)

Describes an experiment, for the general chemistry laboratory, intended to introduce the student to infrared spectroscopy. After being introduced to the theory of molecular vibrations on an elementary level, each student receives a list of 5-7 nickel (II) ammines to be prepared, analyzed and characterized by infrared spectoscopy. (MLH)

Describes the use of biofeedback machines in biology classes which provide students with an awareness of their own brain waves and as a device to demonstrate the fact that the body responds readily to the mind. (BR)

Describes an open-ended interdisciplinary activity in which students construct a model of an island and then investigate real-life problems and other student selected island projects. Emphasis placed on problem solving. (BR)

Describes an aviation course at Perris High School, (Perris, California) designed primarily for potential high school dropouts in which students rebuilt a wrecked airplane. (BR)

Describes a series of films produced by Fairchild Industries which present a positive but realistic outlook toward the challenges of technology for secondary students. Unit's objectives, discussion suggestions and activities are discussed. (BR)

Describes a freshwater pond study in detail which was done as the biology segment of an interdisciplinary study conference at the Old Railway Pond at National Park. (BR)

Describes an experiment wherein the student can demonstrate the existence of all the thiocyanato chromium complexes, estimate the stepwise formation constants, demonstrate the robustness of chromium III complexes, and show the principles of paper electrophoresis. (GS)

Describes an experiment that will acquaint the student with the ion-exchange model, yield data which fit nicely to a computer type analysis, introduce the preparation of electrodes, provide a unique experience with elevated temperatures and ionic solvents, and provide experience in electrometric measurements. (GS)