🌍 Lesson 1: 7 Continents, 5 Oceans

Our planet has 7 continents and 5 oceans. About 71% is water, only 29% is land. There are 195 countries, 8 billion people, and over 7,000 languages spoken.

Asia (largest, 4.7B people) → Africa (54 countries, 1.4B people) → North America → South America → Antarctica (no countries, just penguins) → Europe (smallest mainland) → Oceania/Australia

Most maps lie about Africa's size. It's bigger than the USA, China, India, Japan, and all of Europe COMBINED. The Mercator map projection makes countries near the equator look smaller than they really are.

Pacific (largest — bigger than all land combined!), Atlantic (busiest shipping), Indian (warmest), Southern/Antarctic (newest officially recognized, 2000), Arctic (smallest, mostly frozen... for now).

The equator splits Earth into North and South. Most land and 90% of people live in the Northern Hemisphere. Most of the Southern Hemisphere is ocean.

Russia spans 11 time zones. The Pacific Ocean is wider than the Moon. More people live inside a small circle drawn around Bangladesh than outside it. Canada has more lakes than the rest of the world combined.