Unit One Paying for College 1
Unit Two Tiny Sacrifices at 22,000 Feet 12
Unit Therr UFOs—A Second Look 21
Unit Four Killing Time Online 31
Unit Five Hidden Dangers of Over the Counter Drugs 42
Unit Six America's Best Leaders 52
Unit Seven Twilight Mysteries 61
Unit Eight Superboost Your Memory 69
Unit Nine Champion of the Chimps 81
Unit Ten Terror on an Empty Road 90
Unit Eleven Who Is Jack Kevorkian,Really 102
Unit Twelve What's the Difference between Boys and Girls 113
Unit Thirteen Many Bet the Farm on Auctions on the Internet 123
Unit Fourteen JFK Jr.'s Final Journey 134
Unit Fifteen Mix'n'Match 145
Unit Sixteen Coyote Inc. 156
Unit Seventeen The World Turns Gray 168
Unit Eighteen Is the Earth Alive 182
Unit Nineteen Can Hackers Be Stopped 196
Unit Twenty The Dark 208
Key to the Exercises 225