Unit 2: Thinking Like a ScientistTheme 4: How Does Electricity Work?

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power- having energy to do work

Students must have a great deal of power to complete each school day.

http://www.com.edu/teams/science/photos/album/student%20writing.jpg

electricity- energy that makes heat or light

The lightening caused the electricity in the house to shut off.

http://www.firesafetyprotectionpro.com/_IMAGES/LightningStrike.jpg

glistening- something that shines or looks wet

The lake is glistening in the sun.

http://www.thelensflare.com/large/nylake_15081.jpg

crackling- quick, sharp sounds

The logs burning in the fire made a crackling sound.

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automatic- when something happens by itself without help from a person

A garage door with a remote control is automatic.

http://garagedoors.powersites.net/files/2009/11/garage-door-remote.jpg

advance- to move forward or to improve

The army is going to advance on the enemy.

http://brucewhitehead.files.wordpress.com/2008/12/as90-british-army-artillery1.jpg

appliance- a machine built for a specific purpose

A dishwasher was an appliance built to wash dishes.

http://couragetosing.files.wordpress.com/2009/11/dishwasher2.jpg

alternative- another way of doing something

An alternative to wearing a raincoat is to use an umbrella.

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circuit- a path through which an electric current flows

http://www.google.com/imgres?imgurl=http://education.smarttech.com/NR/rdonlyres/C90D6341-B255-4BE0-B9E0-7CFF61841610/0/circuitBuilding.gif&imgrefurl

A battery provides energy to an electrical circuit.

benefits- positive things that will make life better or easier

There are benefits to paying attention.

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