Passage 306 Seasons: Passage of Time

Passage 307 Whales: Huge Sea Mammals

Passage 308 Terra-Cotta Warriors

Passage 309 Bridges: An Important Beginning

Passage 310 The Right to Read

Passage 311 Helen Keller: Triumph Over Tragedy

Passage 314 Beware of Bears

Passage 317 Caves: Underground Rooms

Passage 318 Glaciers: Rivers of Ice

Passage 319 The Giraffe: The World's Tallest Animal

Passage 406 The Great Wall of China: The Longest Graveyard

Passage 407 Water Bugs: Aquatic Insects

Passage 409 Hummingbirds: Small and Fast

Passage 410 The Koala: Is It a Bear?

Passage 412 Gabriela Mistral: Teacher and Nobel Prize-Winning Author

Passage 413 Baboons: The Biggest Monkey

Passage 414 Wilbur and Orville Wright: The Flying Brother

Passage 505 Rome: A City Built on a Legend

Passage 507 Chopsticks: A Chinese Invention

Passage 508 A Rock Is a Rock. Or Is It?

Passage 509 Totem Poles: Silent Storytellers

Passage 510 Bamboo: Useful Grass

Passage 511 Paint: A Splash of Color

Passage 512 Nessie: The Loch Ness Monster

Passage 513 Communities: Villages, Towns, and Cities

Passage 514 Glaciers: Nature's Bulldozeres