Page 11 - sheet 2nd term prim 4_Classical

Delta Modern Language School
Grade 4
Date ......./......./………

Uses of electricity generated by solar panels:

1. Lighting the streets.
2. Recharge some types of batteries.
3. Operate various electric devices.
4. Operate irrigation equipment in some villages.

Energy chain of the wind turbines

Radiant Converts into Heat energy Converts into Kinetic
energy energy
(From the
(In wind turbines)
sun)
(When temperature
vary between hot air

and cold air)

Electrical energy
(In power lines)

Hydroelectric energy (Hydroelectricity):

➢ It is a type of electrical energy by water turbines in dams.

The use of water to The use of wind to
generate electricity generate electricity

Differences • Water is used in • Wind is used in
Similarities places where dams places with strong

are built on rivers. winds.

• They are renewable resources.

• They use kinetic energy.
• They operate turbines.
• They generate electricity.

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