4

Landmarks of the United States

4

Chip's Tips on United States

3

States of Matter

2

Map of the United States of America

4

An Introduction to the History of the United States of America

4

History of the United States

3

Hanukkah

3

Sinkholes of the World

4

Maddy's New Mexico Diary

3

Do Your Part

4

Maddy's Oregon Diary

4

Maddy's Iowa Diary

3

Astronauts

4

Things to See in New York City

4

The Plains Indians People

3

Sacagawea

4

Maddy's Indiana Diary

4

Maddy's Michigan Diary

3

Thanksgiving Day

4

Maddy's New York Diary

4

Maddy's North Carolina Diary

4

From the American Revolution to the Civil War

4

Maddy's Louisiana Diary

4

Maddy's North Dakota Diary

4

Maddy's Tennessee Diary

4

Famous Americans: George Washington

3

Valleys of the World

4

Chip's Tips on Canada

4

Maddy's Idaho Diary

4

The Golden Gate Bridge