KRIGYAN

World Geography: Some Glimpses

Class 8 · Social Science

1 idea in Class 8 Social Science, explained in plain words, with games and quizzes to practise.

Oceans, Maps and World Geography

Part of: India and the World: Land and the People

Earth is an oblate spheroid. Map projections flatten the globe — all have distortions. Mercator: preserves shape/direction (navigation), distorts size near poles (Greenland looks bigger than India). Robinson: balances size and shape. Oceans: 71% of Earth's surface, hold 97% of water. Five oceans: Pacific, Atlantic, Indian, Arctic (smallest/shallowest), Southern. Blue whale: over 30 m long, ~150,000 kg.

Why it matters. Understanding world geography helps us see how landforms, oceans and climate connect across the globe.

Try it in two minutes

  1. Ask: what percentage of Earth's surface do oceans cover?
  2. Ask: what does the Mercator Projection preserve?
  3. Ask: what is a map projection?

Try at home. Compare a Mercator map and a Robinson map — ask your child to point out which shows Africa and Greenland more accurately.

What your child will practise

  • Oceans, Maps and World Geography: Candy Quick Fire (Quick Fire)
  • Oceans, Maps and World Geography: Explorer'S Map Quest (Collect the Answer)
  • Oceans, Maps and World Geography: Ocean Puzzle (Clue Puzzle)
  • Oceans, Maps and World Geography: Time Travel Quest (Match It Up)
  • Quiz: Oceans, Maps and World Geography (8 questions)