Unit01 Homes Around the World
Unit02 Accidental Inventions
Unit03 Owls
Unit04 Ants
Unit05 Weather
Unit06 Helicopters
Unit07 Japan
Unit08 Italy
Unit09 Children’s Games Around the World
Unit10 Birthday Traditions
Unit11 Thomas Edison
Unit12 Helen Keller
Unit13 Miracle on the Hudson
Unit14 Greta Thunberg, the Great Leaders
Unit15 History of Trains
Unit16 The Old Makeup Story