Additional areas investigate magnetic materials, poles and fields, making magnets, static electricity, direct current, conductors, switches, resistance, and electromagnetism.
(Additional areas; investigate; magnetic materials, poles and fields) (poles and fields; making; magnets, static electricity, direct current, conductors, switches, resistance, and electromagnetism)
Additional areas poles and fields
investigate making
magnetic materials, poles and fields
magnets, static electricity, direct current, conductors, switches, resistance, and electromagnetism