Introduction
Composition of the book

UNIT 1 INTRIGUING CULTURES
in the Sami Culture
First to the Americas
Unit Review

UNIT 2 GOING DEEP
The Deepest Mine in the World
An Underground Everest
Unit Review

UNIT 3 ANCIENT STRUCTURES
El Castillo: The Castle Pyramid
The Hanging Gardens of Babylon
Unit Review

UNIT 4 FASHION UPDATES
Bamboo Clothing
The Evolution of Clothing
Unit Review

UNIT 5 ORGANIC FARMING
An Overview of Organic Farming
Economic Viability of Organic Farming
Unit Review

UNIT 6 MIND TRICKS
Absent-Minded Genius
Tricks of the Mind
Unit Review

UNIT 7 THE WORLD OF ART
Viral Art
Art Collage
Unit Review

UNIT 8 PEOPLE AND ANIMALS
Snakes: A Good Story
The Sanctuary
Unit Review

UNIT 9 EMERGING JOBS IN THE 21ST CENTURY
What about Becoming a Zoologist?
Predicting the Future & Future Jobs
Unit Review

UNIT 10 YOUTH TRADITIONS
Rites of Passage
The American Prom
Unit Review

UNIT 11 BUTTERFLIES AND MOTHS
Butterfly Beauties
The Deceptive Moth
Unit Review

UNIT 12 SAVING THE EARTH
The Enhanced Greenhouse Effect
Environmental Solutions
Unit Review

UNIT 13 TECHNOLOGY
CIA Gadgets?Past and Present
The Copenhagen Wheel
Unit Review

UNIT 14 POLITICAL SCIENCE IN ACTION
The Berlin Wall and Its Legacy
Tiananmen Square
Unit Review

UNIT 15 LIVING CREATURES
Does the Earth Bre...(하략)