4

Lightning

4

The Hmong People

3

All About History

3

Rivers of the World

2

Four Seasons! Deciduous Forest

2

Evergreen Forests! Taiga

4

Maddy's Tennessee Diary

3

Gulfs of the World

3

Saturn

4

Chip's Tips on Laos

4

Amphibians

3

Individual Sports

3

Bays of the World

4

Maddy's Connecticut Diary

4

America in the 20th Century

4

Petronas Twin Towers, Malaysia

4

Maddy's Minnesota Diary

3

Chinese New Year

4

Extreme Earth

4

Volcanoes

4

Patsy and Paul at Angkor Wat in Cambodia

4

Famous Americans: Benjamin Franklin

4

Extreme Weather

2

Country Flags of Asia

3

Inventors and Inventions

4

Maddy's California Diary

4

Maddy's Texas Diary

4

Chip's Tips on Russia

4

Tornadoes

3

Space Exploration