By Mrs. Estes’s 4th Grade Class 2009-2010 Electric Circuits By Mrs. Estes’s 4th Grade Class 2009-2010

________ are tiny particles that carry units of electricity. Electric charges - + - + + - + + + - + - + - - - - + - + - + - - - Positive Charges Negative Charges Same amount is Electrically Neutral

An electric charge that builds up on material. Static Electricity

Something that electricity can run through easily. Conductors

__________ turns chemical energy in electrical energy. An electric cell

The pathway that an electric current follows Electric Circuit

A material that electric charges do not flow through easily are ___________. insulators

The force of a magnet is strongest at the _______. poles

Objects with like electrical charges _______. Repel

They will attract to each other. A person places a magnet A on a table near magnet B. Explain what will happen to magnet B. They will attract to each other.

+ - + - - - - - - + - + - - - - + - - - + - - - - - - - - + - - + - + Objects with unlike electrical charges _______. Attract + - + - - - - - - + - + - - - - + - - - + - - - - - - - - + - - + - + - - - - -

An electric motor is a device that turns electrical energy into ____________ Energy of Motion

A ________must have a wire, battery (cell), and a bulb to work properly. Circuit

battery, a switch, a light bulb, and a conductor. A flashlight must have a ____, ____, ____, and ______ to work properly. battery, a switch, a light bulb, and a conductor.

A ________has only 1 path for the current to flow. Series Circuit

A ________ has more than 1 path for a current to flow. Parallel Circuit

In a string of lights, if one bulb goes out why do all of the other bulbs not work? All of the lights would go out because they are only on one path, which is a series circuit.

In a string of lights, if one bulb goes out why would all the other lights stay on? All of the lights would stay on because they are on a parallel circuit.