Unit 1 A Man with Great Ideas
Unit 2 Great Ideas for Video Games
Unit 3 Encounters with an Amazing Sea Animal
Unit 4 Inventions of the Earliest Americans
Unit 5 Growing Plants in Your Garden
Unit 6 Eating Healthy Foods
Unit 7 Strange Foods to Eat
Unit 8 Making Laws
Unit 9 Building Homes for Those in Need
Unit 10 The History of Televisions
Unit 11 Bicycles in Their Early Days
Unit 12 The United States Postal Service