3

Speed, Velocity, and Acceleration

4

Forbidden City, China

4

Things to See in New York City

4

Maddy's Michigan Diary

3

Light

4

Mount Rushmore

4

Amphibians

4

Chip's Tips on China

4

The Tower Bridge, London

4

Maddy's New Mexico Diary

4

Maddy's Idaho Diary

4

Maddy's Missouri Diary

3

Engineer

4

Maddy's Colorado Diary

4

Canterbury Cathedral, Canterbury, England

4

Maddy's Wyoming Diary

3

Magnetism

4

Maddy's New York Diary

4

Maddy's Nevada Diary

1

Community Helpers

4

Maddy's Utah Diary

4

Yellowstone National Park

4

The Golden Gate Bridge

3

Construction Worker

4

Maddy's Tennessee Diary

4

Eire of the Desert

3

Momentum

3

Inventors and Inventions

4

Maddy's Washington, D.C. Diary

4

Chip's Tips on India