----
banner_electricity.gif
Electricity is the flow of negatively charged particles through metallic surfaces. These negatively charged particles are called electrons. Electricity comes in the forms of static electricity and lightning. Benjamin Franklin was the founder of electricity. He used a kite and a key to show that lightning is attracted to metallic objects and will strike the highest object in the sky.
Static electricity and lightning

static-electricity-hair-stand-on-end1.jpg lightning_striking_tree.jpg

Electricity is a secondary energy source meaning we get it from the conversion of other energy source. Electricity is neither renewable or non-renewable. It is the most widely used energy source in nature.
Thomas Edison had a break through in science when he used electricity to create the light bulb.

Types of Circuits-

Closed circuit- has a complete path for a current to flow.
Open circuit- not a complete path or flow; it is not functional.
Short circuit- a low resistance path, usually made by mistake that bypass a circuit.
Series circuit- the same current flows through all components.
Parallel circuit- one wire branches off into smaller wires then returned to the power source.


Alternating current is a type of electric current where the direction of the current's flow is reversed regularly.
Direct current is a type of electric current that flows in the same direction at all times.



Closed Circuit and Open Circuit

closed_circuit.gifopen_circuit.png
Series Circuit and Short Circuit
series_cicuit.gifshort_circuit.png
Parallel Circuit
parellecircuit.gif




Links
http://en.wikipedia.org/wiki/Electricity
http://www.eia.doe.gov/kids/energyfacts/sources/electricity.html
http://www.sciencemadesimple.com/static.html
http://science.howstuffworks.com/electricity.htm
Games!
http://www.bbc.co.uk/schools/scienceclips/ages/6_7/electricity.shtml
http://www.andythelwell.com/blobz/
http://www.sce.com/kidsscience/wires/game.html