Unit 1 Space Food
Unit 2 The Lion's Roar
Unit 3 Walking with Giants
Unit 4 Dragon Boat Festival
Unit 5 Digging into the Past
Unit 6 Ocean Megabuilders
Unit 7 Flowers from Ecuador
Unit 8 The Legend of Marco Polo
Unit 9 The Global Village
Unit 10 The Sled Dogs of Greenland
Unit 11 Smile Trial
Unit 12 Sea Caves
