Learning objective
Recall that the Earth's atmosphere contains small proportions of other gases including carbon dioxide, water vapour and noble gases.
Read the explanation, check the common trap, then practise with flashcards and questions.
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Topic
The composition and evolution of the Earth's atmosphere
Subtopic
The proportions of different gases in the atmosphere
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Quick explanation
Recall that the Earth's atmosphere contains small proportions of other gases including carbon dioxide, water vapour and noble gases
- This point belongs to The composition and evolution of the Earth's atmosphere, especially The proportions of different gases in the atmosphere.
- You need to be able to recall that the Earth's atmosphere contains small proportions of other gases including carbon dioxide, water vapour and noble gases.
- The key ideas to know are atmosphere, water vapour, and carbon dioxide.
- Use the linked flashcards and practice questions to check recall, then practise applying the idea in an exam-style answer.
Key concepts
Why it matters
This objective helps connect The proportions of different gases in the atmosphere to exam-style questions, flashcards, and revision notes for The composition and evolution of the Earth's atmosphere.
Quick student answer
What should you know about the Earth's atmosphere contains small proportions of other gases including carbon dioxide, water vapour and noble gases?
Direct answer
In Chemistry, this page helps you answer questions about the Earth's atmosphere contains small proportions of other gases including carbon dioxide, water vapour and noble gases within The composition and evolution of the Earth's atmosphere. Focus on the key process, correct scientific terms, and how the idea links to exam-style questions. Key terms to check are carbon dioxide and water vapour.
Key terms
- carbon dioxide: A gas present in the Earth's atmosphere in small proportions, produced by respiration and combustion.
- water vapour: The gaseous form of water present in the atmosphere, contributing to weather and climate.
Common trap
Common Mistake in Gas Proportions: Remember that noble gases are present in very small amounts compared to carbon dioxide, which is also a minor component but more significant than noble gases.
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Revision notestopic notes
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Open revision notesRelated learning objectives
- Recall that the Earth's atmosphere is about 80 percent nitrogen.
The proportions of different gases in the atmosphere
- Recall that the Earth's atmosphere is about 20 percent oxygen.
The proportions of different gases in the atmosphere
- Interpret simple data showing the proportions of gases in the atmosphere.
The proportions of different gases in the atmosphere
- Distinguish the major gases in the present atmosphere from trace atmospheric gases.
The proportions of different gases in the atmosphere
- Explain why percentage composition is useful when describing atmospheric gases.
The proportions of different gases in the atmosphere