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Acid Rain - GCSE Chemistry Definition

Reviewed by: Philippa Platt

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Acid rain refers to rainwater that has been made acidic due to the presence of certain pollutants in the atmosphere, primarily sulphur dioxide (SO2) and nitrogen oxides (NOx). These gases are released from burning fossil fuels, such as coal and oil, in power stations, vehicles, and industries.

Once in the atmosphere, they react with water vapour to form sulphuric acid and nitric acid. When this acid falls as rain, it can damage ecosystems, corrode buildings, and harm aquatic life by lowering the pH of lakes and streams.

Acid rain is an important topic in GCSE Chemistry as it links chemical reactions with environmental science and highlights the impact of human activities on the natural world.

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Philippa Platt

Reviewer: Philippa Platt

Expertise: Chemistry Content Creator

Philippa has worked as a GCSE and A level chemistry teacher and tutor for over thirteen years. She studied chemistry and sport science at Loughborough University graduating in 2007 having also completed her PGCE in science. Throughout her time as a teacher she was incharge of a boarding house for five years and coached many teams in a variety of sports. When not producing resources with the chemistry team, Philippa enjoys being active outside with her young family and is a very keen gardener

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