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Science
Electricity
12
Science
4th Grade
06/04/2008

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Cards

Term
battery
Definition

one or more cells

 that contain special chemicals

that make an electric current

Term
circuit
Definition

the complete circle or path

for an electric current

 to travel in

Term
conductor
Definition
a material that carries electricity
Term
insulator
Definition
a material that will not carry electricity and will not allow electricity to pass through
Term
switch
Definition

a part of an electric circuit used to turn the flow of electricity

 on or off

Term
good conductors
Definition
iron, aluminum, copper  and tin
Term
good insulators
Definition
rubber or plastic
Term
electricity must have a complete circuit of conductors for an electric current to flow
Definition
true
Term
a complete circuit has four parts 
Definition

1. source

2. conductors

3. appliance

4. switch

Term
conductors must be insulated to keep the electricity in its path
Definition
Term
2 sources of electricity
Definition

1. battery

2. generator

Term
a battery produces electricity with special chemicals
Definition
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