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Particulate Nature of Matter

CBSE · Class 8 · Science

Complete topic list for Particulate Nature of Matter in CBSE Class 8 Science. Key concepts, sub-topics, and what to focus on for board exams.

44 questions64 flashcards5 concepts

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4 Topics · CBSE Class 8 Science

Topics in Particulate Nature of Matter

1

1. Matter and its constituent particles

  • Matter is composed of extremely small particles.
  • A constituent particle is the basic unit that makes up a larger piece of a substance or material.
  • Grinding chalk does not change it into a new substance; it is a physical change.
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2. Interparticle attractions and states of matter

  • The constituent particles of matter are held together through attractive forces called interparticle attractions.
  • The strength of these attractions depends on the nature of the substance and the interparticle distance.
  • Even a slight increase in distance decreases the interparticle forces drastically.
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3. Solid state

  • Solids have a definite shape and definite volume.
  • In solids, particles are tightly packed.
  • Strong interparticle attractions hold particles in fixed positions.
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4. Liquid state

  • Liquids do not have a fixed shape and take the shape of the container they are kept in.
  • Liquids have a definite volume.
  • Particles in liquids are somewhat farther apart than in solids, but they are still close together.

Key Concepts

Central concept: Matter is made up of extremely small particles that are held together by interparticle attractions, and their arrangement and movement decide the properties of solids, liquids, and gases.

Constituent particlesInterparticle spacesInterparticle attractionsStates of matterSolid stateLiquid stateGaseous stateTemperature and particle motion

Frequently Asked Questions

What are the important topics in Particulate Nature of Matter for CBSE Class 8 Science?
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.
How to score full marks in Particulate Nature of Matter — CBSE Class 8 Science?
Understand the core concepts first, then work through the 44 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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