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4th Grade Science - Chapter 7 - Electricity (10/7/99)

AB
ElectronA tiny bit of an atom that has a negative charge
ProtonA tiny bit of an atom that has a positive charge
ConductorA material through which electric current passes easily
InsulatorA material through which electric current does not pass easily
ResistanceHow well electricity flows through a material
Series CircuitA circuit that connects several objects one after the other so that the current flows in a single path
Parallel CircuitA circuit that connects several objects in a way that the current for each object has its own path
MagnetAn object that pulls iron and steel things to it
MagnetismThe force around a magnet
PoleA place on a magnet where the magnetism is strongest
Magnetic FieldThe space around a magnet where magnetism acts
CompassA small magnet that can turn freely
GeneratorA machine that uses an energy source and a magnet to make electricity
ElectromagnetA magnet made when an electric current flows through a wire

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