목차
PART 1
Unit 01. The Code of Hammurabi
Unit 02. The Three Climate Zones of West and Central Africa
Unit 03. How Light Works
Unit 04. The Food Chain
Unit 05. Pancakes of the World
PART 2
Unit 06. The Children of Ancient Rome
Unit 07. National Flags of the World
Unit 08. Sound and Echolocation
Unit 09. The Human Immune System
Unit 10. The Ancient Olympic Games
PART 3
Unit 11. Medieval Castles
Unit 12. How the Stock Market Works
Unit 13. Sink or Float?
Unit 14. How Spacesuits Work
Unit 15. Inventive Entrepreneurs
PART 4
Unit 16. The Renaissance
Unit 17. Time Zones
Unit 18. The Forces of Flight
Unit 19. Charles Darwin and Evolution
Unit 20. Michelangelo and the Sistine Chapel Ceiling
