Working Scientifically oxygen is excluded from the fire; the Identify variables that need to be heat is taken from the fuel by controlled in a given experiment. reducing its temperature with water; Plan ways in which to control a simple the fuel is used up.) control variable. Explain the need for a fair test. Plan ways in which to control more than one variable. Justify the choice of control variables. Lesson 8Ed: Air pollution Learning objectives Exemplar teaching activities Differentiation Resources Maths skills Practical skills Developing Starter: Water cycle pollution Exploring: Resources Calculating Students use Recall examples of non-metal oxide Students sketch the water cycle and Measuring from 8Ed means. sticky to pollutants caused by burning fossil label it to show where the changes of Exploring compare pollution fuels and their impurities. state of water take place. They then Students can find Science. particulate (e.g. Describe the reactions of non-metals consider how air pollution leads to out about soot) pollution with oxygen. ground and water pollution as a result different in different Securing of the water cycle, and annotate their sampling areas. Explain the products formed by the diagrams to show this. techniques. complete and incomplete combustion of hydrocarbons. Exploring: Measuring pollution Explain the problems caused by Students use sticky cards to compare incomplete combustion. particulate (e.g. soot) pollution in Explain how sulfur dioxide and different areas. They should nitrogen oxides are produced in some formulate one or more hypotheses combustion reactions. about the locations that will have the Explain how sulfur dioxide and highest levels of particulate pollution nitrogen oxides help to cause acid rain. then test these. Explain how neutralisation can be used to reduce pollution from fossil fuel Explaining: Catalytic converter combustion. Outline how a catalytic converter Explain how vehicle catalytic Students could draw molecular converters work (to reduce pollution diagrams to show the reactions that from fossil fuel combustion). take place inside the catalytic converter.
Working Scientifically Identify variables that need to be controlled in a given experiment. Plan ways in which to control a simple control variable. Explain the need for a fair test. Plan ways in which to control more than one variable. Justify the choice of control variables. oxygen is excluded from the fire; the heat is taken from the fuel by reducing its temperature with water; the fuel is used up.) Lesson 8Ed: Air pollution Learning objectives Exemplar teaching activities Differentiation Resources Maths skills Practical skills Developing Recall examples of non-metal oxide pollutants caused by burning fossil fuels and their impurities. Describe the reactions of non-metals with oxygen. Securing Explain the products formed by the complete and incomplete combustion of hydrocarbons. Explain the problems caused by incomplete combustion. Explain how sulfur dioxide and nitrogen oxides are produced in some combustion reactions. Explain how sulfur dioxide and nitrogen oxides help to cause acid rain. Explain how neutralisation can be used to reduce pollution from fossil fuel combustion. Explain how vehicle catalytic converters work (to reduce pollution from fossil fuel combustion). Starter: Water cycle pollution Students sketch the water cycle and label it to show where the changes of state of water take place. They then consider how air pollution leads to ground and water pollution as a result of the water cycle, and annotate their diagrams to show this. Exploring: Measuring pollution Students use sticky cards to compare particulate (e.g. soot) pollution in different areas. They should formulate one or more hypotheses about the locations that will have the highest levels of particulate pollution then test these. Explaining: Catalytic converter Outline how a catalytic converter Students could draw molecular diagrams to show the reactions that take place inside the catalytic converter. Exploring: Measuring pollution Students can find out about different sampling techniques. Resources from 8Ed Exploring Science. Calculating means. Students use sticky to compare particulate (e.g. soot) pollution in different areas.
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