Chapter 7 of 12
Revision Notes
Air — Revision Notes
ICSE · Class 4 · Science
Air revision notes for ICSE Class 4 Science: 4 topics in quick points. Includes Matter and States of Matter, Properties of Air and Composition of Air.
45 questions38 flashcards5 concepts
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Key Topics to Revise
1
Matter and States of Matter
- Matter is anything that has mass and takes up space.
- There are three states of matter: solid, liquid, and gas.
- Air is a gas and has no definite shape or volume.
2
Properties of Air
- Air occupies space — shown by the glass-and-water experiment.
- Air has weight — proven by balancing inflated and deflated balloons on a scale.
- Air expands on heating — hot air rises and fills balloons.
3
Composition of Air
- Air is a mixture of gases: mainly nitrogen (78%), oxygen (21%), and carbon dioxide (0.04%).
- Air also contains water vapour, dust particles, smoke, and germs.
- Oxygen is essential for breathing and burning.
4
Uses of Air
- Living things need oxygen in air to breathe.
- Air helps in burning — things burn in presence of oxygen.
- Air is used to fill tyres, balloons, and footballs.
Get complete notes with diagrams and examples
Full NotesKey Concepts
Matter is anything that takes upAir has no fixed shapeAir is a mixture of gasesLiving things need oxygen in airAir pollution happens when harmful substances
Frequently Asked Questions
What are the important topics in Air for ICSE Class 4 Science?
Key topics in Air include Matter and States of Matter, Properties of Air, Composition of Air, Uses of Air. Study these first, then practise questions on each for Class 4 exams.
How should I revise Air for Class 4 exams?
Learn the core ideas first, then work through the 45 practice questions on Air. Revise 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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