Science
★ UNIT 01 ★ What Is a Desert? 8
★ UNIT 02 ★ The Water Cycle 16
★ UNIT 03 ★ Alligators and Crocodiles 24
★ UNIT 04 ★ Forests 32
★ UNIT 05 ★ Insects 40
★ UNIT 06 ★ The Solar System 48
★ UNIT 07 ★ Climate 56
★ UNIT 08 ★ What Is Light? 64
Social Studies
★ UNIT 09 ★ The Mighty River: The Nile 72
★ UNIT 10 ★ The Statue of Liberty 80
★ UNIT 11 ★ Abraham Lincoln 88
★ UNIT 12 ★ Helen Keller 96
★ UNIT 13 ★ The First Thanksgiving 104
★ UNIT 14 ★ The Wild West 112
★ UNIT 15 ★ Good Citizens 120
★ UNIT 16 ★ Chinese New Year 128
Language Arts
★ UNIT 17 ★ The Magic Pot 136
★ UNIT 18 ★ How Man Got Fire 144
Math
★ UNIT 19 ★ Fingers, Rocks, and Bones 152
★ UNIT 20 ★ A Smart Counter 160