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Matter and Its Composition

ICSE · Class 7 · Chemistry

Quick revision notes for Matter and Its Composition — ICSE Class 7 Chemistry. Key concepts, formulas, and definitions for last-minute revision.

44 questions43 flashcards5 concepts

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A diagram illustrating the arrangement and movement of particles in solid, liquid, and gaseous states of matter.
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Key Topics to Revise

1

What is Matter?

  • Matter has three features: it has mass, occupies space, and can be perceived by senses.
  • The quantity of matter a body contains is its mass.
  • The space occupied by a body is its volume.
2

Composition of Matter

  • Matter is made up of extremely small particles called atoms.
  • Molecules are bigger than atoms, but both are too small to be seen with the naked eye or an ordinary microscope.
  • Atoms usually do not have independent existence, so they combine to form molecules.
3

Particles of Matter

  • Particles of matter have spaces between them called intermolecular or interparticular spaces.
  • Sugar dissolves in water because sugar particles fit into the spaces between water molecules.
  • A spoon dipped in water raises the water level because it occupies space.
4

States of Matter

  • The three states of matter are solid, liquid and gas.
  • If the force of attraction increases, molecules move closer and space decreases.
  • If the force of attraction decreases, molecules move apart and space increases.

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Full Notes

Key Concepts

Matter is anything that has massMass is the quantity of matterMatter is made of extremely smallA hydrogen molecule has two hydrogenParticles of matter have space between

Frequently Asked Questions

What are the important topics in Matter and Its Composition for ICSE Class 7 Chemistry?
Key topics in Matter and Its Composition include Matter and Its Composition — Complete Chapter Overview, Matter and Its Composition – Chapter Overview, Interconversion of States of Matter - Complete Cycle. These are the concepts ICSE Class 7 examiners draw on most — study them first, then practise related questions.
How to score full marks in Matter and Its Composition — ICSE Class 7 Chemistry?
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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