Page 6 - Elfin Fly_4

Contents

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1 • Where Energy Comes From p. 4

• Energy Problems

• Other Energy Sources

Function- H ow do we save energy?

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2 • Origin of Soccer p. 14

• Soccer Today

• King of Soccer

Function- W ho is the best soccer player?

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3 • What is the Silk Road? p. 24

• How the Silk Road Developed

• The Sea Route

Function- W hat if trade stops one day?

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4 • How Volcanoes Form p. 34

• Matter from Volcanoes

• Shapes of Volcanoes

Function- H ow do volcanoes affect our lives?

Workbook p. 45