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Particulate Nature of Matter

CBSE · Class 8 · Science

Flashcards for Particulate Nature of Matter — CBSE Class 8 Science. Quick Q&A cards covering key concepts, definitions, and formulas.

44 questions64 flashcards5 concepts

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64 Flashcards
Card 1Basic idea of matter

What is matter made of?

Answer

Matter is composed of extremely small particles held together by interparticle attractions. These tiny particles are the building blocks of all substances.

Card 2पदार्थ का मूल विचार

पदार्थ किससे बना है?

Answer

पदार्थ अत्यन्त सूक्ष्म कणों से मिलकर बना होता है जो परस्पर आकर्षण के बल से एक साथ जुड़े रहते हैं। ये सूक्ष्म कण ही सभी पदार्थों के निर्माण खंड हैं।

Card 3Constituent particles

What is a constituent particle?

Answer

A constituent particle is the basic unit that makes up a larger piece of a substance or material. A whole substance is built from many such particles.

Card 4घटक कण

घटक कण क्या होता है?

Answer

घटक कण वह मूलक कण है जो किसी पदार्थ या सामग्री के बड़े टुकड़े को बनाता है। एक सम्पूर्ण पदार्थ ऐसे कई कणों से मिलकर बनता है।

Card 5Chalk activity

What happens when chalk is broken or ground into powder?

Answer

Grinding chalk is a physical change. The chalk does not become a new substance; only the size of its pieces becomes smaller.

Card 6चाक गतिविधि

जब चाक को तोड़ा या पाउडर में पीसा जाता है तो क्या होता है?

Answer

चाक पीसना एक भौतिक परिवर्तन है। चाक कोई नया पदार्थ नहीं बनता है। केवल उसके टुकड़ों का आकार छोटा हो जाता है।

Card 7Dissolving sugar

Why does sugar seem to disappear in water?

Answer

Sugar breaks into its constituent particles and spreads through the spaces between water particles. The sugar is still present, but the particles are too small to see.

Card 8चीनी को घोलना

पानी में चीनी गायब क्यों हो जाती है?

Answer

चीनी अपने घटक कणों में टूट जाती है और पानी के कणों के बीच के स्थानों में फैल जाती है। चीनी अभी भी मौजूद है, लेकिन कण इतने छोटे होते हैं कि दिखाई नहीं देते।

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Particulate Nature of Matter covers several key topics that are frequently asked in CBSE Class 8 board exams. Focus on the core concepts listed on this page and practise related questions to build confidence.
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