Explains magneto-optical effects and describes techniques which may be used, in conjunction with certain materials, to reveal domain structures. In addition, simple experiments are described which enable domains to be observed under various conditions of applied fields. (Author/GA)

Presents an activity that explores the operation of Maglev trains. Demonstrates that elementary students can master cutting-edge technology through creating and racing magnetic vehicles on a specially designed track, researching the history of rail transportation, and exploring a current science issue. (NB)

Reports on group conceptions of magnetism. (Author/CCM)

Presents a simple extension of the standard demonstration of the Meissner Effect which shows the superconductor to be a perfect conductor. (CCM)

This guide explores the connection between electricity and magnetism with middle level and high school students. The phenomenon of electromagnetism is broken down into four lesson plans that provide students and teachers with a carefully constructed yet easy way to learn about their history. All four activities prompt students to use inexpensive,…

Describes the assembly of a simple loudspeaker that can be used to generate high fidelity sound when plugged into a boom-box speaker output. (WRM)

Describes a fast and simple method for measuring the magnetic force acting on a current-carrying conductor using a digital balance. Discusses the influence of current intensity and wire length on the magnetic force on the conductor. (JRH)

Describes a sequence of activities which explore the nature of magnetism. Presents background information and details for classroom instruction for the following activities: plotting two-dimensional magnetic fields, making the reed switch and the reed relay, building a ribbon and moving coil loudspeaker, and investigations of a toy commutatorless…

The unit presented in this teacher's guide is one of two developed for the sixth and final year in the Science Curriculum Improvement Study (SCIS) curriculum. The concept of a scientific model is introduced in this unit with activities directed toward increasing student understanding of electric and magnetic phenomena through concrete experience…

Describes a procedure to demonstrate the effect of a magnetic force on a moving charge. The materials used are inexpensive and with the use of an overhead projector, easily visible to an entire class. (CP)