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Revision Notes

What does air contain

ICSE · Class 2 · Science

Quick revision notes for What does air contain — ICSE Class 2 Science. Key concepts, formulas, and definitions for last-minute revision.

43 questions25 flashcards4 concepts

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Key Topics to Revise

1

What Is Air Made Of?

  • Air is a mixture of gases we cannot see.
  • The most important gas in air is oxygen, which all living things need to breathe.
  • Air also contains water vapour, which is water in the form of gas.
2

How to Keep Air Clean

  • Planting trees helps clean the air because trees take in harmful gases and give out oxygen.
  • Walking or cycling instead of using cars reduces smoke in the air.
  • We should not burn leaves, plastic, or garbage because it creates harmful smoke.

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Full Notes

Key Concepts

Air contains gases like oxygenWhen water is heated byTiny dust particles float inWhen someone coughs or sneezes

Frequently Asked Questions

What are the important topics in What does air contain for ICSE Class 2 Science?
What does air contain covers several key topics that are frequently asked in ICSE Class 2 board exams. Focus on the core concepts listed on this page and practise related questions to build confidence.
How to score full marks in What does air contain — ICSE Class 2 Science?
Understand the core concepts first, then work through the 43 practice questions available for this chapter. Revise formulas and definitions regularly, and use flashcards for quick recall before the exam.

Sources & Official References

Content is aligned to the official syllabus. Refer to the board website for the latest curriculum.

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