| Method |
Precise Learning Objective |
Linked |
Question / Activity
(Designed for maximum working out) |
Stepping Stones |
Pitstop Check
(Thinking Map) |
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The combustion of fuels is a major source of atmospheric pollutants. |
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What human activity is the biggest contributor to an increase in atmospheric pollutants? |
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Most fuels, including coal, contain carbon and/or hydrogen and may also contain some sulfur. |
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What do most fuels contain? What is combustion?
https://www.youtube.com/watch?v=zEjEqnMBdEM |
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The gases released into the atmosphere when a fuel is burned may include carbon dioxide, water vapour, carbon monoxide, sulfur dioxide and oxides of nitrogen. Solid particles and unburned hydrocarbons may also be released that form particulates in the atmosphere. |
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Name the gases commonly released into the atmosphere when a fuel is burned? Combustion and acid rain
https://www.youtube.com/watch?v=HE6Y0iEuXMQ
Explain why the following can be produced in combustion:
• Carbon dioxide
• Carbon monoxide
• Soot
• Water vapour
• Sulfur dioxide
• Oxides of nitrogen. |
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Students should be able to describe how carbon monoxide, soot (carbon particles), sulfur dioxide and oxides of nitrogen are produced by burning fuels. |
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How does burning fuels produce carbon monoxide, soot (carbon particles), sulfur dioxide and oxides of nitrogen? Research task: Study the effects of emisions of:
• Carbon monoxide on the human body.
• Sulfur dioxide and oxides of nitrogen on acidity of rain water.
• Sulfur dioxide and oxides of nitrogen on respiratory system.
• Particulates on global dimming.
• Particulates on human health problems. |
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Carbon monoxide is a toxic gas. It is colourless and odourless and so is not easily detected. |
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What are the impacts of emissions of carbon monoxide? Investigate the effects of pollution on rain water using titration. Aim To find out how much alkali is needed to neutralise four samples of rain water.
enough samples for each group to test one once (20mL per group) and shared results.
China - pH 1-2
UK - pH 6
Greenland pH 7
Australia - pH 4-5
Phenolphthalein colourless in acidic and pink in alkaline solutions. |
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Sulfur dioxide and oxides of nitrogen cause respiratory problems in humans and cause acid rain. |
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What environmental impact does the emission of sulfur dioxide and oxides of nitrogen cause? |
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Particulates cause global dimming and health problems for humans. |
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What environmental impact do particulates cause? |
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Students should be able to describe and explain the problems caused by increased amounts of these pollutants in the air. |
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Describe and explain the problems caused by increased amounts of the following pollutants in the atmosphere:
a) Carbon Dioxide
b) Nitrogen Oxides
c) Sulfur Dioxide
d) Particulates |
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