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Revision Notes

Materials and Solutions

ICSE · Class 4 · Science

Quick revision notes for Materials and Solutions — ICSE Class 4 Science. Key concepts, formulas, and definitions for last-minute revision.

45 questions30 flashcards4 concepts

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Key Topics to Revise

1

Soluble and Insoluble Substances

  • A substance that dissolves in a liquid is called soluble.
  • Sugar, salt, and juice powder dissolve in water — they are soluble.
  • A substance that does not dissolve in a liquid is called insoluble.
2

Solute, Solvent, and Solution

  • A solution is formed when a solute dissolves in a solvent.
  • The substance that dissolves is called the solute (e.g., sugar).
  • The liquid in which the solute dissolves is called the solvent (e.g., water).
3

Separation of Soluble Substances

  • Evaporation is used to separate a dissolved solid from a liquid.
  • When saltwater is heated, water turns into vapour and salt is left behind.
  • This method is used to get salt from seawater in hot countries.
4

Separation of Insoluble Substances

  • Sedimentation: Heavy particles settle down when water is left undisturbed.
  • Decantation: Pouring clean water carefully after sedimentation.
  • Filtration: Passing mixture through a filter to separate solids from liquid.

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Full Notes

Key Concepts

A substance that dissolves inThe substance that dissolves isWhen two liquids mix completelyWe use different methods to separate

Frequently Asked Questions

What are the important topics in Materials and Solutions for ICSE Class 4 Science?
Materials and Solutions covers several key topics that are frequently asked in ICSE Class 4 board exams. Focus on the core concepts listed on this page and practise related questions to build confidence.
How to score full marks in Materials and Solutions — ICSE Class 4 Science?
Understand the core concepts first, then work through the 45 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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