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We use energy everyday. Energy is obtained from different sources of energy.
Sources of Energy
Non-renewable Energy Sources
Non-renewable energy sources cannot be replaced. They will run out one day.
Fossil fuels and nuclear fuels are non-renewable energy sources.
Coal, petroleum and natural gas are fossil fuels.
are used directly as fuels.
Natural gas and coal
Petroleum is used to produce fuels such as petrol and diesel. It is also used to make plastic and other products.
Petroleum
Uranium and plutonium are nuclear fuels. They produce more energy than fossil fuels. They are used to produce electricity.
Advantages and Disadvantages of Non-renewable Energy Sources
01 They can be easily stored and transported. That means they are available at any moment.
02 Fuels from petroleum are easy too use in different machines, for example, in cars,
Advantages
01 They will run out one day.
02 They cause pollution. Fossil fuels produce smoke when they are burnt.
Disadvantages
Non-renewable energy sources will run out one day. Fossil fuels are non-renewable energy sources.
QUIZ
Identify if the sentences are true of false. Then, in your notebook correct the false sentences.
TRUE
FALSE
1. Non-renewable energy sources can be replaced.
TRUE
FALSE
2. Petroleum is used to produce fuels such as petrol and diesel.
TRUE
FALSE
3. Fossil fuels and nuclear fuel will never run out.
TRUE
FALSE
4. Non-renewable energy can be easily transported.
TRUE
FALSE
5. Fossil fuels produce more energy than nuclear fuel.
Renewable Energy Sources
Renewable energy sources will never run out because they are continually produced in nature.
Examples of renewable energy sources are: sunlight, wind, flowing water, and plant remains such as firewood.
Advantages and Disadvantages of Renewable Energy Sources
01 They will never run out because they are continually produced in nature.
02 They cause less pollution than fossil fuels.
Advantages
01 They are not continually available.
02 They are difficult to use directly.
Disadvantages
Renewable energy sources will never run out one day. Sunlight, wind, flowing water, and plant remains such as firewood.
QUIZ
Identify the different sources of energy.
RENEWABLE
NON-RENEWABLE
o
RENEWABLE
NON-RENEWABLE
1. WIND
RENEWABLE
NON-RENEWABLE
2. COAL
RENEWABLE
NON-RENEWABLE
3. NATURAL GAS
RENEWABLE
NON-RENEWABLE
4. SUNLIGHT
RENEWABLE
NON-RENEWABLE
5. URANIUM