AQA GCSE Chemistry Foundation

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Use this AQA GCSE Chemistry revision page to focus on a Foundation question from Unit 10 Using resources, within Life cycle assessment and recycling. You can check exactly what this GCSE Chemistry question is testing, see concise GCSE mark scheme guidance, and practise with structured support. AI Marker gives you 75,000+ GCSE questions, instant AI marking, and Mentor — an AI Tutor built for GCSE revision, so your GCSE exam practice is clear and focused.

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AQA • Chemistry • Unit 10 Using resources

Name the initial process used in treating waste water.

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GCSE revision question
Question context

Waste water treatment involves several stages including screening, sedimentation, biological treatment, and sterilisation. These stages remove solids, organic matter, and harmful microorganisms to protect public health and the environment.

Name the initial process used in treating waste water.

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Answer and mark-scheme guidance

MP1: Screening

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Can you give the exact process the mark scheme wants here?

This 1-mark AQA GCSE Chemistry question is testing whether you can identify the initial stage in waste water treatment. The mark scheme awards the mark for the wording screening. Because this is a short-answer question, you need the exact process named in the mark scheme.

Quick takeaway: To earn the mark: screening.

Waste water treatment: question, answer and mark-scheme focus

For this GCSE Chemistry revision question, the key skill is recognising the correct named stage from the waste water treatment sequence described in the topic context. In this AQA GCSE Chemistry question, only the initial process is being tested, so the mark depends on matching the mark scheme wording exactly. This makes it a useful piece of GCSE exam practice if you want to get faster and more accurate with GCSE Chemistry questions and answers. Use AI Marker for more AQA GCSE Chemistry questions, instant AI making

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