Unit I:A Taste of America Chapter 1 A Family Sees America Together Chapter 2 The All-American Diner Unit II:Family Life Chapter 3 How Alike Are Identical Twins? Chapter 4 The Search for Happiness through Adoption Unit III:Technology on Earth and in Space Chapter 5 Laptops for the Classroom Chapter 6 The International Space Station:A World Project Unit IV:Healthy Living Chapter 7 The Dangers of Secondhand Smoke Chapter 8 A Healthy Diet for Everyone Unit V:International Scientists Chapter 9 Alferd Nobel:A Man of Peace Chapter 10 Marie Curie:A Twentieth-Century Woman Unit VI:The Earth's Resources and Dangers Chapter 11 Oil as an Important World Resource Chapter 12 How Earthquakes Happen Index of Key Words Answer Key |
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