3

Speed, Velocity, and Acceleration

4

Forbidden City, China

4

Things to See in New York City

4

Maddy's New York Diary

4

Maddy's Wisconsin Diary

4

Maddy's Missouri Diary

4

Maddy's Michigan Diary

4

Chip's Tips on Mexico

4

Maddy's Tennessee Diary

3

Western New Year's Day

3

Helen Keller

4

Hoover Dam

4

Chip's Tips on New Zealand

3

Christmas

4

Eire of the Desert

2

The Magical Cruise

4

Petronas Twin Towers, Malaysia

4

Maddy's Hawai'i Diary

4

Maddy's Washington, D.C. Diary

4

Maddy's Kansas Diary

4

Maddy's Montana Diary

4

Dr. Why-Physics

3

Heat and Temperature

3

Magnetism

4

Maddy's Oklahoma Diary

4

Chip's Tips on Ghana

4

Yellowstone National Park

4

The Grand-Place, Belgium

4

The Statue of Liberty

3

St. Patrick's Day