3

Speed, Velocity, and Acceleration

4

Things to See in New York City

4

Forbidden City, China

4

Canterbury Cathedral, Canterbury, England

4

Hoover Dam

4

Chip's Tips on India

4

Maddy's New Jersey Diary

3

Western New Year's Day

4

Chip's Tips on New Zealand

4

The Mississippi River

4

Maddy's Iowa Diary

4

The Tower Bridge, London

4

Maddy's Utah Diary

4

Chip's Tips on Botswana

3

Construction Worker

3

Sinkholes of the World

3

Heat and Temperature

4

Chip's Tips on Ghana

4

Maddy's Montana Diary

2

The Magical Cruise

4

Maddy's Washington, D.C. Diary

4

The Golden Gate Bridge

4

The Willis Tower

4

Mount Rushmore

4

Maddy's Wyoming Diary

4

Chip's Tips on United States

4

Maddy's Colorado Diary

3

Physics

4

Sources of Energy

4

Maddy's Texas Diary