Electricity is the energy of moving electrons. We explored static electricity and current electricity. Lightning is static discharge caused by the buildup of electrons in one place. We used balloons to investigate static electricity and discovered that two balloons with the same charge will repel each other. We also learned that static charges enable balloons to stick to the wall. Current electricity occurs when electrons move through a wire. Conductors allow electrons to flow, while insulators do not allow electrons to flow through it. Copper wire is a conductor, while plastic that surrounds the wire is an insulator. Electricity creates a magnetic field that allows us to make temporary magnets that can be turned on or off. We made motors by attaching coils of wire to a circuit. Using magnets to attract and repel the temporary magnet, we made the coil spin the same as an electric motor.
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AuthorMrs. Ouziel teaches science classes to second, third and fourth grade students. Archives |