Energy SourcesPrimary 3- SciencePrepared by: Ms. Maricel C. Janier

Energy SourcesEnergy sources provide energy.

Two types of Energy Sources:1. Renewable Energy Sources are energy

sources that can replenish themselves naturally. Examples: Sun, Wind and Running Water.

2. Non-Renewable Energy Sources are energy sources that cannot replenish themselves in a short period of time. Examples: Fossil fuel, coal and natural gas.

Renewable Energy Sources orNon-renewable Energy Sources

Energy Sources

Renewable Energy Sources orNon-renewable Energy Sources

Energy Sources

Renewable Energy Sources orNon-renewable Energy Sources

Energy Sources

Renewable Energy Sources orNon-renewable Energy Sources

Energy Sources

Renewable Energy Sources orNon-renewable Energy Sources

Energy Sources

Renewable Energy Sources orNon-renewable Energy Sources

Energy Sources

Electricity

ELECTRICITY is a type of energy fueled by the transfer of electrons from positive and negative points within a conductor. Electricity is widely used for providing power to buildings, electric devices, and even some automobiles. The energy that is being used the most every day in houses is ELECTRICAL ENERGY.Electrical appliances that operate on electricity.

Electricity

POWER STATIONS convert various energy sources into electricity.

TYPES OF POWER STATIONS

1. Hydroelectric Power Station

2. Wind Power Station

3. Solar Power Station

4. Fuel Power Station

Electricity

TYPES OF POWER STATIONS1. Hydroelectric Power Station – A dam is built across

the river. The running water flows through tunnels in the dam to turn the turbines which then drive the generator. Hydroelectric power stations use running water to generate Electricity.

Dam turbine generator electricity

Electricity

TYPES OF POWER STATIONS1. Wind Power Station – use wind to turn the

blades which drive generators. A high wind speed is needed for wind power to operate effectively.

Wind turbine generator electricity

Electricity

TYPES OF POWER STATIONS1. Solar Power Station – use the heat from

the sun to heat a fluid to produce steam. The steam turns the turbines and generator to generate electricity

Sun steam turbine generator electricity

ElectricityTYPES OF POWER STATIONS

1. Fuel Power Station – use fossil fuels such as coal , natural gas or gasoline to heat water to produce steam. Like solar power stations, the steam turns the turbines and generator to generate electricity.

Fuel steam turbine generator electricity

Safety and Precautions to follow when we use electricity

1. Do not touch electric power points, switches or electrical appliances when your hands are wet.

Safety and Precautions

2.Do not poke anything into electrical power points.

Safety and Precautions

3. Do not have too many plugs in one power point.

Safety and Precautions

4. Do not repair electrical appliances yourself. Get a qualified electrician to do the job.

Safety and Precautions

5. Do not use appliances that are damaged or that have wire with a broken or cracked insulation.

Safety and Precautions