Grade 9 · Social Science

CBSE 2026-27 · Secondary · researched 2026-10-08

Original revision introduction and starter practice. Full learning texts are available through the publisher links below. This guide is not a CBSE-issued solution manual.

Revision introduction

Social Science connects historical evidence, geography, civic institutions and economic choices. Distinguish primary sources from later interpretations. Plate movement shapes landforms; weather is short-term while climate concerns long-term patterns. Scarcity means choices carry opportunity costs. In a democracy, representatives are accountable through institutions and elections.

Curriculum navigation

  1. Understanding Social Science
  2. Shaping of the Earth’s Surface
  3. Atmosphere and Climate
  4. Early Humans and Beginning of Civilisation
  5. State and Empires
  6. Democracy
  7. Elections
  8. Building Blocks of an Economy
  9. The Price Mechanism
  10. Oceans and Life
  11. Life on Earth
  12. Resistance and Resilience
  13. India and the World
  14. Authority and Justice
  15. From Ideas to Startups
  16. Smart Ways to Manage Money

Consult the current official syllabus for examinable sections, project-only content, practicals, prescribed texts and exclusions. A unit index does not override those boundaries.

Original practice

Which example describes opportunity cost?

  1. The best alternative forgone by a choice
  2. All money in a bank
  3. A free resource with unlimited supply
  4. The sum of every possible option

Worked answer

The best alternative forgone by a choice

Choosing one use of a scarce resource means giving up the next-best alternative.

Full publisher materials and answer resources