Since we make the presentation to large classes, an auditorium or gym would be appropriate. It helps with future funding and it promotes science education. Please contact your local news media for coverage. Everyday we come into contact with many different magnets. Wood, plastic, aluminum, copper, brass and steel are tested for magnetic properties.
Cheerios are magnetic because they contain iron.
When electricity is flowing in the wire, magnetism surrounds the coil. You can pick up magnetic materials and release them by shutting off the electricity. A speaker converts electrical current, changing with the beat of the music into sound. A magnetic impulse produces a loud bang and Rice Krispies fly in the air. Sparks appear when a circle of metal foil is cut.