Lesson 1 A Big Mystery: Why Do We Laugh?
Lesson 2 America on Wheels
Lesson 3 A Warmer or a Colder Earth?
Lesson 4 Bill Gates——Microsoft chairman and chief software architect
Lesson 5 Cancer Causes Founded in Lifestyle
Lesson 6 Cars Drive Themselves
Lesson 7 Clone: The Road to Dolly, and the Path Ahead
Lesson 8 Coca-Cola, Chocolate Chip Cookies, and Yellow Sticky Notes
Lesson 9 Gene Map Brings Hope
Lesson 10 How Nature Breaks Rocks
Lesson 11 Inside the World of Dreams
Lesson 12 Internal Combustion Engines
Lesson 13 Is a Cure for Cancer on the Horizon?
Lesson 14 Jupiter and the Outer Planets
Lesson 15 Man's Abilities
Lesson 16 Mending Faces
Lesson 17 Move the Earth--It's No Science Fiction
Lesson 18 Neil Alden Armstrong
Lesson 19 Science Hero: Philo Taylor Farnsworth
Lesson 20 Smart Phones to Emerge
Lesson 21 The Migration of Birds
Lesson 22 The Pleasure of Books
Lesson 23 The Ultimate Machine: The Electronic Computer
Lesson 24 Time and the Stars
Lesson 25 Why Do We Blink?
Lesson 26 Why Is There No Cure for the Cold?
Lesson 27 YAHOO !——The history of Yahoo! --how it all started.
Lesson 28 Yuri Alekseyevich Gagarin
Keys to the Exercises
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