Lists sources for procuring magnets of your own. Building a Simple Motor Teachers using the Magnets and Motors kit may want to experiment with building these different motor models to increase their understanding and offer classroom versatility. A humorous chat explains the properties of sound. The characters are fictional, the science is not. Mechanics of Sound Transmission Dry but direct statements about the properties of sound waves that are important for hearing.
Energy Explains how sound is energy, and introduces harmonics.
Energy Quest A wealth of energy information for elementary teachers and students covering a huge range of topics from the California Energy Commission. The vocabulary list is a handy reference. Brief but useful page with good electricity links at the bottom. Electricity and Magnetism Module Visually engaging site that includes an easy definition and demonstration of static electricity. Fascinating background source, combining history and science.