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Class 8 · Geography

Map scales

Interactive explanation Gamified quiz, feedback & rewards

0 XP0 mastered
Suggested-level exploration · Learning goals & preparation

By the end, you can…

  • Explain Ground km = map cm × scale / 100,000
  • Change one input at a time and predict its effect before checking the model.
  • Apply the relationship in a quiz and explain the reasoning behind your answer.

Useful preparation: Directions, units and interpreting maps. Suggested previous stop: Follow a drop of water.

This topic has a suggested learning level. A matching chapter in the current NCERT edition has not been verified, so it is not labelled as syllabus coverage.

Interactive exploration · Class 8

Map scales

Class 8
Ground distance (km)02.85.68.411.201020Map distance (cm)Scale denominator held at 50000 · scale adjusts to values
The relationshipGround km = map cm × scale / 100,000
01 · How to explore

Make the idea your own

  1. 1Read the inputs and predict what will change.
  2. 2Change one parameter while keeping the other fixed.
  3. 3Explain the result using the diagram and the live values.
02 · Take it further

Notice the pattern

A larger denominator shows more ground in the same map space.