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1. 
1. Electricity is a flow of.......... moving by a cooper wire.
A.
Coils
B.
Electrons
C.
Gas
D.
Electricity
2. 
2. On building walls, we can see cooper pipes transporting.............
A.
Gas
B.
Turbine
C.
Engine
D.
Generator
3. 
3. Spinnig a ........ inside a cooper coil we can obtain electricity in this coil.
A.
Pipe
B.
Magnet
C.
Gas
D.
Electricity
4. 
4.If we connect ......... to a copper coil with a magnet inside, this magnet starts to spin.
A.
Battery
B.
Generator
C.
Turbines
D.
Engines
5. 
5. A ........... is a machine that produces electricity by sipinning a magnet inside a cooper coil
A.
Pipe
B.
Generator
C.
Turbine
D.
Engine
6. 
6. An engine is a machine that produces........applying electricity to a copper coil
A.
Movement
B.
Coil
C.
Gas
D.
Electricity
7. 
Attaching a........ to a magnet we can spin it using natural media.
A.
Turbine
B.
Copper coil
C.
Battery
D.
Generator
8. 
Nowadays we use water or wind to spin turbines in............ without polluting.
A.
Electricity
B.
Coils
C.
Generators
D.
Electrons
9. 
We can use also water ............ but polluting because we have to boil water using gas or oil
A.
Coil
B.
Copper
C.
Smoke
D.
Steam
10. 
Finally we can use also produce water steam by heating water with..........materials.
A.
Radioactive
B.
Gas
C.
Liquid
D.
Mineral