Learning objective

Recognize that natural water sources may contain various substances such as dissolved oxygen, metal compounds, plastics, sewage, harmful microbes, nitrates from fertilizers, and phosphates from fertilizers and detergents.

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Exam focus

Cambridge IGCSE ChemistryChemistry of the environmentCore content

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Quick explanation

This point belongs to Water, especially Water outcomes.
You need to be able to recognize that natural water sources may contain various substances such as dissolved oxygen, metal compounds, plastics, sewage, harmful microbes, nitrates from fertilizers, and phosphates from fertilizers and detergents.
The key ideas to know are State.
Use the linked flashcards and practice questions to check recall, then practise applying the idea in an exam-style answer.

Key concepts

State

Why it matters

This objective helps connect Water outcomes to exam-style questions, flashcards, and revision notes for Water.

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Flashcards10 linked cards

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Practice Questions7 linked questions

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Paper 3Theory (Core)1 marks

Description

Natural water sources can contain various substances that affect water quality.

a
State one substance that can be found in natural water sources.
Your answer
Aim for approximately 1 distinct marking point.
[1]

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