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Revision Notes

The Solar System

ICSE · Class 3 · Social Science

Quick revision notes for The Solar System — ICSE Class 3 Social Science. Key concepts, formulas, and definitions for last-minute revision.

49 questions25 flashcards4 concepts

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Key Topics to Revise

1

The Milky Way Galaxy

  • A galaxy is a huge group of stars, dust, and gases held together by gravity.
  • The Milky Way is the galaxy that contains our Solar System.
  • It looks like a bright, milky band of light in the night sky.
2

The Solar System

  • The Solar System consists of the Sun and all the objects that move around it.
  • There are 8 planets in our Solar System: Mercury, Venus, Earth, Mars, Jupiter, Saturn, Uranus, and Neptune.
  • The word 'solar' means 'of the Sun'.
3

The Sun and Stars

  • The Sun is a star and the closest one to Earth.
  • Stars are big balls of fire that give their own light and heat.
  • The Sun is the center of the Solar System.
4

Planets and Their Features

  • Planets do not have their own light or heat — they reflect sunlight.
  • Mercury is the smallest and closest to the Sun.
  • Venus is the hottest and called Earth’s twin.

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Full Notes

Key Concepts

The Milky Way is a hugeThe Solar System consists ofStars are big balls of fireMoons are natural satellites that go

Frequently Asked Questions

What are the important topics in The Solar System for ICSE Class 3 Social Science?
The Solar System covers several key topics that are frequently asked in ICSE Class 3 board exams. Focus on the core concepts listed on this page and practise related questions to build confidence.
How to score full marks in The Solar System — ICSE Class 3 Social Science?
Understand the core concepts first, then work through the 49 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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All 14 chapters — ICSE Class 3 Social Science Revision Notes

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