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These resources have been reviewed and selected by STEM Learning’s team of education specialists for factual accuracy and relevance to teaching STEM subjects in UK schools.
Speak to Me, Lichen
In this Catalyst article, students at La Sainte Union Catholic School in North London investigate the link between lichen species and air pollution around their school.
Lichens are indicators of changes in air quality; tolerant species replace those which are sensitive to a given pollutant. This effect is observed across urban and rural Britain, especially in regions where oxidised and reduced forms of nitrogen are present. Nitrogen dioxide is the dominant air pollutant in urban areas, due to pollution from road traffic. Therefore, measuring levels of nitrogen dioxide can indicate the quality of our town air.
This article is from Catalyst: Secondary Science Review 2013, Volume 23, Issue 3.
Catalyst is a science magazine for students aged 14-19 years. Annual subscriptions to print copies of the magazine can be purchased from Mindsets.
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