Unit 1 Big Bucks the Easy Way Unit 2 Deer and the Energy Cycle Unit 3 Why Do We Believe That the Earth Is Round? Unit 4 Jim Thorpe Unit 5 To lie on Not to Lie—The Doctor's Dilemma Unit 6 How to Mark a Book Unit 7 The Luncheon Unit 8 The New Caves Unit 9 Journey West Unit 10 Why People Work