4

History of Carnival Rides

3

All About History

4

History of the United States

4

An Introduction to the History of the United States of America

4

The Sites & History of Coney Island

3

Comets

4

Maddy's Kentucky Diary

4

Maddy's Louisiana Diary

3

Helen Keller

4

Chip's Tips on Chile

4

Maddy's Delaware Diary

4

Maddy's Pennsylvania Diary

3

Christopher Columbus

4

Maddy's Georgia Diary

4

Maddy's Illinois Diary

4

Maddy's Montana Diary

3

Galaxies

3

Asteroids

4

Chip's Tips on Equatorial Guinea

4

Early Native Americans

3

Anne Frank

4

Chip's Tips on Australia

4

Maddy's Maryland Diary

4

Chip's Tips on Mexico

4

Chip's Tips on Sudan

4

Maddy's Nevada Diary

3

A Capitol Dream

4

Chip's Tips on Oman

4

The American Civil War

4

Maddy's Missouri Diary