3

Neil Armstrong

3

The Moon

2

Washing and Bathing

2

The Wonders of the Human Body

3

Astronauts

3

Space Exploration

4

Chip's Tips on United States

3

All About History

4

Maddy's Louisiana Diary

4

America in the 20th Century

3

Body Systems

3

Famous Explorers

4

Early North American Settlers

4

Maddy's Mississippi Diary

4

Maddy's Connecticut Diary