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Biology, Science
4th
grade
LET´S PRACTICE STANDARDS 1 AND 2 ENERGY SOURCES
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STANDARD 1
Propose predictions related to some energy sources, taking into account the relationships between some variables involved in their functioning.
Problem situation :
In this city, the use of oil is very common. It can cause air pollution during its use. The inhabitants of the city need to use a new source of energy. (see picture)
Propose a prediction related to a form of clean energy that could be used, taking into account one advantage and one disadvantage of its use.
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STANDARD 1
Propose predictions related to some energy sources, taking into account the relationships between some variables involved in their functioning.
Problem situation 1:
In a region, the main source of energy are fossil fuels, and they are generating a lot of air pollution problems.
According to the characteristics of the area shown in the picture, propose a prediction related to a form of clean energy that could be used, taking into account one advantage and one disadvantage of its use.
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STANDARD 2.
According to the problem situation, explain the solution related to the Energy sources and the impact of each one of them on the environment.
Problem situation 1:
The use of this source of energy provides different advantages such as: they are easily transported for their various uses by train, tanker or pipeline, also the cost of electricity produced by using this energy, is relatively inexpensive.
1. According to the picture, what type of energy is it?
2.Explain two negative effects on the environment of the use of this energy.
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Standard 2
Problem situation :
All of these are disadvantages of fossil fuels, except.
They can damage ecosystems.
The cost of electricity produced by burning fossil fuels is relatively expensive.
They can contain toxic chemicals that can cause air pollution during use.
They release large amounts of carbon dioxide (CO2), a greenhouse gas.
- Multiple ChoicePlease save your changes before editing any questions.
Problem situation
Standard 2.
This is one of the negative effects produced by natural gas on the environment.
It releases large amounts of carbon dioxide (CO2), a greenhouse gas.
Natural gas spills, especially at sea, can damage ecosystems.
It produces less CO2 than oil and coal.
It is the cleanest burning fossil fuel.
- Multiple ChoicePlease save your changes before editing any questions.
Standard 2.
Problem situation.
This is one of the disadvantages produced by the use of wind energy.
It does not create air or water pollution
It produces less CO2 than oil and coal.
It is available and unlimited.
It produces noise pollution.