Matter around us
Kerala Board · Class 9 · Science
Quick revision notes for Matter around us — Kerala Board Class 9 Science. Key concepts, formulas, and definitions for last-minute revision.
Key Topics to Revise
Definition and Concept of Matter
- Matter is anything that occupies space and has mass
- All substances around us - water, air, food, clothes, even our body - are examples of matter
- Matter exists in different forms with varying shapes, sizes, and textures
States of Matter
- Matter exists in three main states: solid, liquid, and gas
- Water is the best example - exists as ice (solid), water (liquid), and water vapor (gas)
- The same substance can exist in different states under different conditions
Properties of Solids
- Have definite shape and fixed volume
- Particles are tightly packed with strong forces of attraction
- Cannot be compressed easily
Properties of Liquids
- Have fixed volume but no definite shape
- Take the shape of their container
- Can flow easily - called fluids
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Matter around us covers several key topics that are frequently asked in Kerala Board Class 9 board exams. Focus on the core concepts listed on this page and practise related questions to build confidence.
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Sources & Official References
- Kerala Board of Public Examinations — keralapareekshabhavan.in
- National Education Policy 2020 — education.gov.in
Content is aligned to the official syllabus. Refer to the board website for the latest curriculum.
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